Knowledge without practice is useless. Practice without knowledge is dangerous.
To be wealthy and honored in an unjust society is a disgrace.
Don't do unto others what you don't want others to do unto you.
In speaking, it is best to be clear and say just enough to convey the meaning.
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 gentleman sees what is right while the small man sees what is profitable.