Do not put forward anything that you cannot prove by experimentation.

It is surmounting difficulties that makes heroes.

The artificial products do not have any molecular dissymmetry; and I could not indicate the existence of a more profound separation between the products born under the influence of life and all the others.

In the realm of scientific observation, luck is granted only to those who are prepared.

Time is the best appraiser of scientific work, and I am aware that an industrial discovery rarely produces all its fruit in the hands of its first inventor.

These are the living springs of great thoughts and great actions. Everything grows clear in the reflections from the Infinite.

Will opens the door to success, both brilliant and happy.