Intuition is given only to him who has undergone long preparation to receive it.

Chance favors the prepared mind.

To bring one's self to believe in a truth that has just dawned upon one is the first step towards progress; to persuade others is the second.

... by chance you will say, but chance only favors the mind which is prepared.

Are the atoms of the dextroacid (tartaric) grouped in the spirals of a right-hand helix or situated at the angles of an irregular tetrahedron, or arranged in such or such particular unsymmetrical fashion? We are unable to reply to these questions. But there can be no reason for doubting that the grouping of the atoms has an unsymmetrical arrangement with a non-superimposable image. It is not less certain that the atoms of the laevo-acid realize precisely an unsymmetrical arrangement of the inverse of the above.

There is no such thing as applied science, only the application of pure science.

After death, life reappears in a different form and with different laws. It is inscribed in the laws of the permanence of life on the surface of the earth and everything that has been a plant and an animal will be destroyed and transformed into a gaseous, volatile and mineral substance.