Acquire new knowledge whilst thinking over the old, and you may become a teacher of others.

Real knowledge is to know the extent of one's ignorance.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

Knowledge is merely brilliance in organization of ideas and not wisdom. The truly wise person goes beyond knowledge.

Knowledge kills action; action requires the veils of illusion.

My mother taught me three things: respect, knowledge, search for knowledge. It's an eternal journey.