Innately, children seem to have little true realistic anxiety. They will run along the brink of water, climb on the window sill, play with sharp objects and with fire, in short, do everything that is bound to damage them and to worry those in charge of them, that is wholly the result of education; for they cannot be allowed to make the instructive experiences themselves.

Conservatism, however, is too often a welcome excuse for lazy minds, loath to adapt themselves to fast changing conditions.

Once again, only religion can answer the question of the purpose of life. One can hardly be wrong in concluding that the idea of life having a purpose stands and falls with the religious system.

Against the suffering which may come upon one from human relationships the readiest safeguard is voluntary isolation, keeping oneself aloof from other people. The happiness which can be achieved along this path is, as we see, the happiness of quietness. Against the dreaded external world one can only defend oneself by some kind of turning away from it, if one intends to solve the task by oneself.

It often seems that the poet's derisive comment is not unjustified when he says of the philosopher: “With his nightcaps and the tatters of his dressing-gown he patches the gaps in the structure of the universe.

Maturity is the ability to postpone gratification.

The facts which have caused us to believe in the dominance of the pleasure principle in mental life also find expression in the hypothesis that the mental apparatus endeavours to keep the quantity of excitation present in it as low as possible or at least to keep it constant.