When you admonish a wrongdoer, do so gently, that it may not lead to hostility.

As a breath of wind or some echo rebounds from smooth, hard surfaces and returns to the source from which it issued, so the stream of beauty passes back into its possessor through his eyes, which is its natural route to the soul; arriving there and setting him all aflutter, it waters the passages of the feathers and causes the wings to grow, and fills the soul of the loved one in his turn with love.

... Societies aren t made of sticks and stones, but of men whose individual characters, by turning the scale one way or another, determine the direction of the whole.

The tools which would teach men their own use would be beyond price.

Geometry existed before creation.

The true lover of knowledge naturally strives for truth, and is not content with common opinion, but soars with undimmed and unwearied passion till he grasps the essential nature of things.

The cure of the part should not be attempted without treatment of the whole. No attempt should be made to cure the body without the soul. Let no one persuade you to cure the head until he has first given you his soul to be cured, for this is the great error of our day, that physicians first separate the soul from the body.