It has been said that every science must pass through three periods of development. The first is that of presentiment, or of faith; the second is that of sophistry; and the third is that of sober research.


Familiar Letters on Chemistry, Letter III (p. 60), Walton & Maberly. 1859

Justus von Liebig Quotes

It has been said that every science must pass through three periods of development. The first is that of presentiment, or of faith; the second is...

It has been said that every science must pass through three periods of development. The first is that of presentiment, or of faith; the second is...

It has been said that every science must pass through three periods of development. The first is that of presentiment, or of faith; the second is...

It has been said that every science must pass through three periods of development. The first is that of presentiment, or of faith; the second is...