If all mankind were suddenly to practice honesty, many thousands of people would be sure to starve.

To receive applause for works which do not demand all our powers hinders our advance towards a perfecting of our spirit. It usually means that thereafter we stand still.

Those who never have time do least

We say that someone occupies an official position, whereas it is the official position that occupies him.

Most subjects at universities are taught for no other purpose than that they may be re-taught when the students become teachers.

One has to do something new in order to see something new.

The construction of the universe is certainly very much easier to explain than is that of the plant.