It often happens that we blurt out things that may in some kind of way be harmful to us, but we are silent about things that may make us look ridiculous; because in this case effect follows very quickly on cause.
Whatever torch we kindle, and whatever space it may illuminate, our horizon will always remain encircled by the depth of night.
Imitation and custom are the spring of almost all human action. The cause of it is that men fight shy of all and any sort of reflection, and very properly mistrust their own discernment. At the same time this remarkably strong imitative instinct.
To feel envy is human, to savour schadenfreude is devilish.
Natural science is either the description of forms (morphology) or the explanation of changes (etiology). Neither can afford us the information we chiefly desire.
Every moment of our life belongs to the present only for a moment; then it belongs for ever to the past.