Knowledge is a weapon. I intend to be formidably armed.

Our knowledge is a receding mirage in an expanding desert of ignorance.

The opinion is the medium between knowledge and ignorance.

The end of all knowledge should be service to others.

Knowledge is not a guarantee of good political behavior, but ignorance is a virtual guarantee of bad behavior.

Freedom is never given; it is won. 

Knowledge will give you power, but character respect.

Knowledge is knowing that a tomato is a fruit. Wisdom is knowing not to put it in a fruit salad.

Having knowledge but lacking the power to express it clearly is no better than never having any ideas at all.

Happiness is when what you think, what you say, and what you do are in harmony.