To say to the painter that Nature is to be taken as she is is to say to the player that he may sit on the piano.

Nature is usually wrong.

Two and two continue to make four in spite of the whine of the amateur for three or the cry of the critic for five.

That pleasure which is at once the most pure, the most elevating and the most intense, is derived, I maintain, from the contemplation of the beautiful.

Those who raise envy will easily incur censure.

I describe incidents which may or may not have happened but which are true.

The experiences show us just as we are; they make us see our own defects.

There are some things I can just smell. It's like a sixth sense." "Well, actually, that would be one of the five.

This is our moment. This is our destiny. It's a good destiny

... can life be made undignified by any act of man?

Luck is just another word for tenacity of purpose.

If you don't ever stop singing, your voice stays in shape. It's like the marathon runner. You've got to run, run, run to stay in shape.

Teachers started recognizing me and praising me for being smart in science and that made me want to be even smarter in science!