Nothing will change the fact that I cannot produce the least thing without absolute solitude.

The credit of advancing science has always been due to individuals and never to the age.

If you start to think of your physical and moral condition, you usually find that you are sick.

Nature! We are enveloped and embraced by her, incapable of emerging from her and incapable of entering her more deeply. Unbidden and unwarned, she receives us into the circuits of her dance, drifting onward with us herself, until we grow tired and drop from her arms.

We learn to treasure what is above this earth; we long for revelation, which nowhere burns more purely and more beautifully than in the New Testament.

The flowers are full of honey, but only the bee finds out the sweetness.

If you treat men the way they are you never improve them. If you treat them the way you want them to be, you do.