Knowledge

The true method of knowledge is experiment.

Enthusiastic admiration is the first principle of knowledge and its last.

Man's desires are limited by his perceptions; none can desire what he has not perceived.

Enlightenment means taking full responsibility for your life.

When I tell the truth, it is not for the sake of convincing those who do not know it, but for the sake of defending those that do.

Science is knowledge arranged and classified according to truth, facts, and the general laws of nature

The scientist is a lover of truth for the very love of truth itself, wherever it may lead

Earth's crammed with heaven, and every common bush afire with God; but only he who sees, takes off his shoes - the rest sit round it and pluck blackberries

Interest makes some people blind, and others quick-sighted

I would not attack the faith of a heathen without being sure I had a better one to put in its place

I don't wait for moods. You accomplish nothing if you do that. Your mind must know it has got to get down to work

If you want to understand today, you have to search yesterday

The bitterest creature under heaven is the wife who discovers that her husband's bravery is only bravado, that his strength is only a uniform, that his power is but a gun in the hands of a fool.

The secret of joy in work is contained in one word: excellence. To know how to do something well is to enjoy it

In heaven I yearn for knowledge, account all else inanity; On earth I confess an itch for the praise of fools - that's vanity

There, that is our secret: go to sleep! You will wake, and remember, and understand

Everything has been said, and we have come too late, now that men have been living and thinking for seven thousand years and more

We come too late to say anything which has not been said already

We can recognize the dawn and the decline of love by the uneasiness we feel when alone together

The secret of success lies not in doing your own work, but in recognizing the right man to do it