The advantage of the incomprehensible is that it never loses its freshness.

Every social system is more or less against nature, and at every moment nature is at work to reclaim her rights.

If what has happened in the one person were communicated directly to the other, all art would collapse, all the effects of art would disappear.

The world acquires value only through its extremes and endures only through moderation; extremists make the world great, the moderates give it stability.

Growing nations should remember that, in nature, no tree, though placed in the best conditions of light, soil, and plot, can continue to grow and spread indefinitely.

In the physical world, one cannot increase the size or quantity of anything without changing its quality. Similar figures exist only in pure geometry.

What Degas called 'a way of seeing' must consequently bear a wide enough interpretation to include way of being, power, knowledge, and will.