True praise comes often even to the lowly; false praise only to the strong.
Long is the road to learning by precepts, but short and successful by examples.
The greatest wealth is a poverty of desires.
Wisdom teaches us to do, as well as to talk; and to make our words and actions all of a colour.
I do not distinguish by the eye, but by the mind, which is the proper judge of the man.
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.