Great is he who enjoys his earthenware as if it were plate, and not less great is the man to whom all his plate is no more that earthenware.

Anger, if not restrained, is frequently more hurtful to us than the injury that provokes it.

The language of truth is unvarnished enough.

A single lifetime, even though entirely devoted to the sky, would not be enough for the study of so vast a subject. A time will come when our descendants will be amazed that we did not know things that are so plain to them.

What-so-ever the mind has ordained for itself, it has achieved

You should keep on learning as long as there is something you do not know.

Reason wishes that the judgement it gives be just; anger wishes that the judgement it has given seem to be just.