The recipe for perpetual ignorance is: Be satisfied with your opinions and content with your knowledge.

The knowledge that makes us cherish innocence makes innocence unattainable.

The benefits of education and of useful knowledge, generally diffused through a community, are essential to the preservation of a free government.

Wonder, connected with a principle of rational curiosity, is the source of all knowledge and discover, and it is a principle even of piety; but wonder which ends in wonder, and is satisfied with wonder, is the quality of an idiot.

Wisdom is a kind of knowledge. It is knowledge of the nature, career, and consequences of human values.

It is the province of knowledge to speak, and it is the privilege of wisdom to listen.

Knowledge like timber shouldn't be mush use till they are seasoned.

I am not a member of any organization listed by the Attorney General as subversive. In any instance where I lent my name in the past, it was certainly without knowledge that such an organization was subversive. I have always been essentially and foremost an American.

We are least open to precise knowledge concerning the things we are most vehement about.

Science is the knowledge of consequences, and dependence of one fact upon another.

It is always more difficult to fight against faith than against knowledge.

There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.

Knowledge can be communicated, but not wisdom. One can find it, live it, be fortified by it, do wonders through it, but one cannot communicate and teach it.

There is, so I believe, in the essence of everything, something that we cannot call learning. There is, my friend, only a knowledge - that is everywhere.

Wonder rather than doubt is the root of all knowledge.