There is no national science, just as there is no national multiplication table; what is national is no longer science.

If our life has a meaning, an aim, it has nothing to do with our personal happiness, but something wiser and greater.

There should be more sincerity and heart in human relations, more silence and simplicity in our interactions. Be rude when you're angry, laugh when something is funny, and answer when you're asked.

Perhaps man has a hundred senses, and when he dies the five senses that we know perish with him, and the other ninety-five remain alive... Everything that is unattainable for us now will one day be near and clear... But we must work.

Wherever there is degeneration and apathy, there also is sexual perversion, cold depravity, miscarriage, premature old age, grumbling youth, there is a decline in the arts, indifference to science, and injustice in all its forms.

I let myself go at the beginning and write with an easy mind, but by the time I get to the middle I begin to grow timid and to fear my story will be too long. . .That is why the beginning of my stories is always very promising and looks as though I were starting on a novel, and the middle is huddled and timid, and the end is...like fireworks.

In nature a repulsive caterpillar turns into a lovely butterfly. But with human beings it is the other way round: a lovely butterfly turns into a repulsive caterpillar.