Better to perish from fools than to accept praises from them.

There are plenty of good people, but only a very, very few are precise and disciplined.

In two or three hundred years life on earth will be unimaginably beautiful, astounding. Man needs such a life and if it hasn't yetappeared, he should begin to anticipate it, wait for it, dream about it, prepare for it. To achieve this, he has to see and know more than did his grandfather and father.

we all have too many wheels, screws and valves to judge each other on first impressions or one or two pointers. I don't understand you, you don't understand me and we don't understand ourselves.

They say philosophers and wise men are indifferent. Wrong. Indifference is a paralysis of the soul, a premature death.

If you cry 'forward', you must without fail make plain in what direction to go.

A tree is beautiful, but what's more, it has a right to life; like water, the sun and the stars, it is essential. Life on earth is inconceivable without trees.