Health is the soul that animates all the enjoyments of life, which fade and are tasteless without it.

I decided to sell my drawings. However, I didn't want people to buy my drawings because the professor of physics isn't supposed to be able to draw - isn't that wonderful - so I made up a false name.

Let us permit nature to have her way. She understands her business better than we do.

Our patience will achieve more than our force.

We shall see but a little way if we require to understand what we see.