The only true wisdom is in knowing you know nothing.

Know well what leads you forward and what holds you back, and choose the path that leads to wisdom.

The highest wisdom has but one science - the science of the whole - the science explaining the whole creation and man's place in it.

Mysterious language is not a sign of wisdom. The wiser a person is, the simpler the language he uses to express his thoughts.

Wisdom adorneth riches and casteth a shadow over poverty.

Wonder is the beginning of wisdom.