Two things fill the mind with ever new and increasing admiration and reverence: the starry heavens above me and the moral law within me.

I had to deny knowledge in order to make room for faith.

Thoughts without content are empty, intuitions without concepts are blind.

Treat humanity, in your own person or in another, always as an end and never merely as a means.

One is one's own refuge

-- The Buddha

The pleasant life is produced not by endless drinking and revelry but by sober reasoning.

-- Epicurus

Reserve your right to think, for even to think wrongly is better than not to think at all.

-- Hypatia

It is not I who conform to the stars; the stars conform to me.

-- Plotinus

Don't tell people how to do things, tell them what to do and let them surprise you with their results.

-- Phil Knight

Neither a man nor a crowd nor a nation can be trusted to act humanely or to think sanely under the influence of a great fear.

-- Bertrand Russell