While he lives, he must think; while he thinks, he must dream.

I don't subscribe to the thesis, 'Let the buyer beware,' I prefer the disregarded one that goes, 'Let the seller be honest.'

The essential building block is...the true love that is impossible to define for those who have never experienced it and unnecessary to define for those who have.

If you're born in a cubicle and grow up in a corridor, and work in a cell, and vacation in a crowded sun-room, then coming up into the open with nothing but sky over you might just give you a nervous breakdown.

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.

If a conclusion is not poetically balanced, it cannot be scientifically true.

I am not a speed reader. I am a speed understander.