Someday, in the distant future, our grandchildren's grandchildren will develop a new equivalent of our classrooms. They will spend many hours in front of boxes with fires glowing within. May they have the wisdom to know the difference between light and knowledge.
Knowledge is true opinion.
Knowledge is the food of the soul.
This I know - that I know nothing.
A library of wisdom, is more precious than all wealth, and all things that are desirable cannot be compared to it. Whoever therefore claims to be zealous of truth, of happiness, of wisdom or knowledge, must become a lover of books.
Knowledge becomes evil if the aim be not virtuous.
Ideas are the source of all things
I thought to myself: I am wiser than this man; neither of us probably knows anything that is really good, but he thinks he has knowledge, when he has not, while I, having no knowledge, do not think I have.
Knowledge unqualified is knowledge simply of something learned.
Poets utter great and wise things which they do not themselves understand.
Either we shall find what it is we are seeking or at least we shall free ourselves from the persuasion that we know what we do not know.