He who learns but does not think, is lost! He who thinks but does not learn is in great danger... Men of superior mind busy themselves first getting at the root of things; when they succeed, the right course is open to them.

The superior man is universally minded and no partisan. The inferior man is a partisan and not universal.

Happiness is not at the top of the mountain, but in how to climb.

He who cannot describe the problem will never find the solution to that problem.

Cultivate the root; the leaves and branches will take care of themselves.

Reading without thinking will confuse you.Thinking without reading will place you in danger.

The man of upright life is obeyed before he speaks.