A little knowledge that acts is worth infinitely more than much knowledge that is idle.

Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

Common sense is the collection of prejudices acquired by age eighteen.

Opinion is the medium between knowledge and ignorance.

Necessity is the mother of invention.

Learning never exhausts the mind.

Human behavior flows from three main sources: desire, emotion, and knowledge

Words can be like X-rays if you use them properly - they'll go through anything. You read and you?re pierced.

A witty saying proves nothing.

Intelligence plus character-that is the goal of true education.

Courage, conviction and confidence.

Investigate, educate and organize the country must progress, productive works and industries are the main avenues at present next to education for the advancement of the country

If you're teaching today what you were teaching five years ago, either the field is dead or you are.

The ability to observe without evaluating is the highest form of intelligence.

Industrialize or perish.

A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.

You can never be overdressed or overeducated.

Seek knowledge from the cradle to the grave.

The first principle is that you must not fool yourself and you are the easiest person to fool.

Imagination is the source of every form of human achievement. And it's the one thing that I believe we are systematically jeopardizing in the way we educate our children and ourselves.

If the facts don't fit the theory, change the facts.