The government was set to protect man from criminals, and the Constitution was written to protect man from the government.

What is the basic, the essential, the crucial principle that differentiates freedom from slavery? It is the principle of voluntary action versus physical coercion or compulsion.

To fear to face an issue is to believe that the worst is true.

An inventor is a man who asks 'Why?' of the universe and lets nothing stand between the answer and his mind.

The men who are not interested in philosophy need it most urgently; they are most helplessly in its power.

We are on strike against martyrdom—and against the moral code that demands it. We are on strike against those who believe that one man must exist for the sake of another. We are on strike against the morality of cannibals, be it practiced in body or in spirit. We will not deal with men on any terms but ours—and our terms are a moral code which holds that man is an end in himself and not the means to any end of others.

...only the pleasure which proceeds from a rational value judgement can be regarded as moral, pleasure, as such, is not a guide to action nor a standard of morality.