When starting or joining a Revolution, don’t forget that the Army will never run out of bullets.
Data is not information, information is not knowledge, and knowledge is not wisdom.
The two most common elements in the universe are hydrogen and stupidity.
It's foolish to expect a man to tell the truth, when his paycheck depends on him not telling the truth.
Only that life is worth living which develops the strength and the integrity to withstand the unavoidable sufferings and misfortunes of existence without flying into an imaginary world.
We are what we pretend to be, so we must be careful about what we pretend to be
Man is a rational animal who always loses his temper when he is called upon to act in accordance with the dictates of reason
The rash assertion that 'God made man in his own image' is ticking like a time-bomb at the foundations of many faiths, and as the heirarchy of the universe is disclosed to us, we may have to recognize this chilling truth: if there are any gods whose chief concern is man, they cannot be very important gods.
Most of the greatest evils that man has inflicted upon man have come through people feeling quite certain about something which was, in fact, false.
Philosophy is written in the vast book which stands open before our eyes. I mean the universe; but it cannot be read until we have learnt the language and become familiar with the characters in which it is written.
If space is, it will be in something; for everything that is, is in something; and to be in something is to be in space. Space then will be in space, and so on, ad infinitum. Therefore space does not exist.
Man differs from the animal only by little; most men throw that little away.
Geological eras, periods, and epochs are human inventions; they are man's attempt to put huge stretches of time in their place and make them seem reasonable comprehensible. Nature was indifferent to such fine distinctions. Time flowed on continuously with one phase changing imperceptible into another without dividing itself neatly into segments.
But it does me no injury for my neighbor to say there are twenty gods or no God. It neither picks my pocket nor breaks my leg.
There should be a law, that if you find God, you get to keep him.
The greatest sin is to do well what should not be done at all.