All human beings by nature desire to know.

Virtue is a kind of mean.

Man is by nature a political animal.

One swallow does not make a spring.

Virtue lies in the middle.

It is hard to retain what you learn unless you practice it.

-- Seneca

Waste no more time arguing about what a good man should be. Be one.

-- Marcus Aurelius

Courage begins the difficult deed, but fortune governs its outcome.

-- Democritus

A journey of a thousand miles begins with a single step.

-- Laozi

Think by becoming the thing; act by becoming the thing.

-- Kitarō Nishida

To know and not to act is not yet to know.

-- Wang Yangming