The unexamined life is not worth living.

I know that I know nothing.

It is not living that matters, but living rightly.

I know that I am intelligent, because I know that I know nothing.

I am not an Athenian or a Greek, but a citizen of the world.

It is not living that matters, but living rightly.

-- Socrates

Ethics is the ground of being of human community — the way of aidagara (betweenness) between person and person.

-- Tetsuro Watsuji

Human nature is evil; its goodness is the result of deliberate effort.

-- Xunzi

Do not impose on others what you yourself do not desire.

-- Confucius

A person may cause evil to others not only by his actions but by his inaction, and in either case he is justly accountable to them for the injury.

-- John Stuart Mill

Blessedness is not the reward of virtue but virtue itself.

-- Benedictus de Spinoza