We should regret our mistakes and learn from them, but never carry them forward into the future with us.

You can find peace amidst the storms that threaten you.

Knowledge rests not upon truth alone, but upon error also.

I like to listen. I have learned a great deal from listening carefully. Most people never listen.

Knowledge is like money: to be of value, it must circulate, and in circulating, it can increase in quantity and, hopefully, in value.

The aim of education is the knowledge, not of facts, but of values.

No man's knowledge here can go beyond his experience.

Your mind will answer most questions if you learn to relax and wait for the answer.

Where there is no vision, there is no hope.

It is one of my sources of happiness never to desire a knowledge of other people's business.