The death of dogma is the birth of morality.

Thinking in pictures precedes thinking in words.

So act that anything you do may become universal law.

The ideal of the supreme being is nothing but a regulative principle of reason which directs us to look upon all connection in the world as if it originated from an all-sufficient necessary cause.

Fallacious and misleading arguments are most easily detected if set out in correct syllogistic form.

Honesty is better than any policy.

The sceptics, a kind of nomads, despising all settled culture of the land, broke up from time to time all civil society. Fortunately their number was small, and they could not prevent the old settlers from returning to cultivate the ground afresh, though without any fixed plan or agreement.