When an old truth ceases to be applicable, it does not become any truer by being stood on its head.

There will always be One against All, one person against all others. [This is so] not because One is terribly wise and All are terribly foolish, but because the process of thinking and researching, which finally yields truth, can only be accomplished by an individual person. In its singularity or duality, one human being seeks and finds – not the truth (Lessing) –, but some truth.

Promises are the uniquely human way of ordering the future, making it predictable and reliable to the extent that this is humanly possible.

in addition to the conditions under which life is given to man on earth, and partly out of them, men constantly create their own, self-made conditions, which, their human origins notwithstanding, possess the same conditioning power as natural things. whatever touches or enters into a sustained relationship with human life immediately assumes the character of a condition of human existence. this is why men, no matter what they do, are always conditioned beings. whatever enters the human world of its own accord or is drawn into it by human effort becomes part of the human condition.

Plurality of languages: [...] It is crucial 1. that there are many languages and that they differ not only in vocabulary, but also in grammar, and so in mode of thought and 2. that all languages are learnable.

Power corresponds to the human ability not just to act but to act in concert. Power is never the property of an individual; it belongs to a group and remains in existence only so long as the group keeps together. When we say of somebody that he is 'in power' we actually refer to his being empowered by a certain number of people to act in their name. The moment the group, from which the power originated to begin with ... disappears, 'his power' also vanishes.

No punishment has ever possessed enough power of deterrence to prevent the commission of crimes.