The first people totalitarians destroy or silence are men of ideas and free minds.
Philosophers are adults who persist in asking childish questions.
Few new truths have ever won their way against the resistance of established ideas save by being overstated.
Liberty for wolves is death to the lambs.
Injustice, poverty, slavery, ignorance - these may be cured by reform or revolution. But men do not live only by fighting evils. They live by positive goals, individual and collective, a vast variety of them, seldom predictable, at times incompatible.
The fundamental sense of freedom is freedom from chains, from imprisonment, from enslavement by others. The rest is extension of this sense, or else metaphor.