I think and think for months and years. Ninety-nine times, the conclusion is false. The hundredth time I am right.

As the area of light expands, so does the perimeter of darkness.

I have never obtained any ethical values from my scientific work.

I was supposed to choose apractical profession, but this was simply unbearable to me.

Nothing will benefit human health and increase the chances for survival of life on Earth as much as the evolution to a vegetarian diet.

Anybody who really wants to abolish war must resolutely declare himself in favor of his own country's resigning a portion of sovereignty in place of international institutions.

When a man, after long years of searching, chances upon a thought which discloses something of the beauty of this mysterious universe, he should not therefore be personally celebrated. He is already sufficiently paid by his experience of seeking and finding.