True knowledge is knowledge of why things are as they are, and not merely what they are.
Liberty for wolves is death to the lambs.
We are doomed to choose and every choice may entail irreparable loss.
Utopias have their value -- nothing so wonderfully expands the imaginative horizons of human potentialities -- but as guides to conduct they can prove literally fatal.
The first people totalitarians destroy or silence are men of ideas and free minds.
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.