He had read much if one considers his long life, but his contemplation was much more than his reading. He was wont to say that if he had read as much as other men he should have known no more than other men.
The saddest aspect of life right now is that science gathers knowledge faster than society gathers wisdom.
Never let your sense of morals prevent you from doing what's right.
Humanity has the stars in its future, and that future is too important to be lost under the burden of juvenile folly and ignorant superstition.
Creationists make it sound as though a 'theory' is something you dreamt up after being drunk all night.
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I have a dream that one day this nation will rise up and live out the true meaning of its creed: "We hold these truths to be self-evident: that all men are created equal."