Dmitri Mendeleev Quotes

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Elements which are similar as regards their chemical properties have atomic weights which are either of nearly the same value (eg. Pt, Ir, Os) or which increase regularly (eg. K, Ru, Cs).

Dmitri Mendeleev
Science plays an auxiliary part in our lives, for it is merely a means to the attainment of wellbeing.

Dmitri Mendeleev
Science, which deals with the infinite, is itself without bounds.

Dmitri Mendeleev
An individual production is only significant in virtue of that which has preceded and that which is contemporary with it, it resembles a mirror which in reflecting exaggerates the size and clearness of neighbouring objects, and causes a person near it to see reflected most plainly those objects which are on the side to which it is directed.

Dmitri Mendeleev
By ordering the elements according to increasing atomic weight in vertical rows so that the horizontal rows contain analogous elements, still ordered by increasing atomic weight, one obtains the following arrangement, from which a few general conclusions may be derived. David M. Knight (ed.)

Dmitri Mendeleev
In sciences like chemistry, which treat of ideas as well as of the substances of nature, experience demonstrates at every step that the work of the past has availed much and that without it it would be impossible to advance "into the ocean of the unknown."

Dmitri Mendeleev
By investigating the universe by an inductive method (endeavoring from the much which is observable to arrive at a little which may be verified and is indubitable) the new science refuses to recognise dogma as truth, but through reason, by a slow and laborious method of investigation, strives for and attains to true deductions.

Dmitri Mendeleev
Refrain from illusions, insist on work, and not on words, patiently search divine and scientific truth.

Dmitri Mendeleev
We must expect the discovery of many as yet unknown elements-for example, elements analogous to aluminum and silicon- whose atomic weight would be between 65 and 75.

Dmitri Mendeleev
Knowing how contented, free and joyful is life in the realms of science, one fervently wishes that many would enter their portals.

Dmitri Mendeleev
Chemistry is concerned with the study of the homogeneous substances or material of which all the objects of the universe are made up, with the transformations of these substances into each other, and with the phenomena which accompany such transformations.

Dmitri Mendeleev
Experiment itself cannot give truth, but it gives the means of destroying erroneous representations whilst confirming those which are true in all their consequences.

Dmitri Mendeleev
Scientific discoveries are rarely made overnight, for usually the heralds do not at once manage to convince the world in the verity of the discovered; but we must not forget that discoveries result from the work of many and from the accumulated aggregate of facts.

Dmitri Mendeleev
Hypotheses help and guide scientific work — the search for truth — as the tiller's plough helps the cultivation of useful plants.

Dmitri Mendeleev
By gradually studying matter, people finally take command of it. Their predictions concerning it, proved by the facts, become ever more accurate. They use it more widely and more frequently to satisfy their needs. There are no grounds to think that knowledge and our mastery over matter have bounds.

Dmitri Mendeleev
The invisible world of chemical atoms is still waiting for the creator of chemical mechanics.

Dmitri Mendeleev
Nature, inert to the eyes of the ancients, has been revealed to us as full of life and activity.

Dmitri Mendeleev
I have no need of proof. The laws of nature, unlike the laws of grammar, admit of no exception.

Dmitri Mendeleev
Science is a universal heritage, and therefore it is only just to give the highest honour in science, not to those who first enunciate a certain truth, but to those who are first able to convince others of its authenticity and establish it for the general welfare.

Dmitri Mendeleev
By summoning adherents to the work of theoretical chemistry, I am confident that I call them to a most useful labour, to the habit of dealing correctly with nature and its laws, and to the possibility of becoming truly practical men.

Dmitri Mendeleev
I shall not form any hypothesis, either here nor further on to explain the nature of the periodic law. For first of all, the law itself is too simple; and secondly, this new subject has been too little studied yet, in its diverse parts for us to form any hypothesis.

Dmitri Mendeleev
The elements which are the most widely diffused have small atomic weights.

Dmitri Mendeleev
If statements of fact themselves depend upon the person who observes them, how much more distinct is the reflection of the personality of him who gives an account of methods and of philosophical speculations which form the essence of science!

Dmitri Mendeleev
While science is pursuing a steady onward movement, it is convenient from time to time to cast a glance back on the route already traversed, and especially to consider the new conceptions which aim at discovering the general meaning of the stock of facts accumulated from day to day in our laboratories.

Dmitri Mendeleev
What has been sown for the field of science will grow up for the people's welfare.

Dmitri Mendeleev
To conceive, understand, and grasp the whole symmetry of the scientific edifice, including its unfinished portions, is equivalent to tasting that enjoyment only conveyed by the highest forms of beauty and truth.

Dmitri Mendeleev
The elements, if arranged according to their atomic weights, exhibit an apparent periodicity of properties.

Dmitri Mendeleev
The magnitude of the atomic weight determines the character of the element, just as the magnitude of the molecule determines the character of a compound body.

Dmitri Mendeleev
In science we must all submit not to what seems to us attractive from one point of view or another, but to what represents an agreement between theory and experiment.

Dmitri Mendeleev
If all the elements are arranged in the order of their atomic weights, a periodic repetition of properties is obtained. This is expressed by the law of periodicity.

Dmitri Mendeleev