If there's a gun on the wall in act one, scene one, you must fire the gun by act three, scene two. If you fire a gun in act three, scene two, you must see the gun on the wall in act one, scene one.

It is always "Youth, youth," when there is nothing else to be said.

Oh, I don't object, of course, to cutting wood from necessity, but why destroy the forests? The woods of Russia are trembling under the blows of the axe. Millions of trees have perished. The homes of the wild animals and birds have been desolated; the rivers are shrinking, and many beautiful landscapes are gone forever. And why? Because men are too lazy and stupid to stoop down and pick up their fuel from the ground.

When you're thirsty and it seems that you could drink the entire ocean that's faith; when you start to drink and finish only a glass or two that's science.

If you fear loneliness, then don't get married.

The unhappy are egoistic, spiteful, unjust, cruel, and less capable of understanding each other than fools. Unhappiness does not bring people together but draws them apart, and even where one would fancy people should be united by the similarity of their sorrow, far more injustice and cruelty is generated than in comparatively placid surroundings.

You look boldly ahead; isn't it only that you don't see or divine anything terrible in the future; because life is still hidden from your young eyes.