The constancy of the internal environment is the condition for free and independent life: the mechanism that makes it possible is that which assured the maintenance, with the internal environment, of all the conditions necessary for the life of the elements.


Lectures on the Phenomena of Life Common to Animals and Plants (1878)


The constancy of the internal environment is the condition for free and independent life: the mechanism that makes it possible is that which assured...

The constancy of the internal environment is the condition for free and independent life: the mechanism that makes it possible is that which assured...

The constancy of the internal environment is the condition for free and independent life: the mechanism that makes it possible is that which assured...

The constancy of the internal environment is the condition for free and independent life: the mechanism that makes it possible is that which assured...