What a man's mind can create, man's character can control.

I have never seen the slightest scientific proof of the religious ideas of heaven and hell, of future life for individuals, or of a personal God.

I didn't fail 1000 times. The light bulb was an invention with 1000 steps.

Books will soon be obsolete in the schools... Our school system will be completely changed in the next ten years.

What you are will show in what you do.

Most of the exercise I get is from standing and walking around laboratory tables all day. I derive more benefit and entertainment from this than some of my friends and competitors get from playing games like golf.

The dove is my emblem.