The tyranny of the many would be when one body takes over the rights of others, and then exercises its power to change the laws in its favor.

I read these words which are the sum of all moral philosophy, and which cut short all the disputes of the casuists: When in doubt if an action is good or bad, refrain.

Let us read, and let us dance — these two amusements will never do any harm to the world.

If one does not reflect, one thinks oneself master of everything; but when one does reflect, one realizes that one is master of nothing.

The Jewish nation dares to display an irreconcilable hatred toward all nations, and revolts against all masters; always superstitious, always greedy for the well-being enjoyed by others, always barbarous - cringing in misfortune and insolent in prosperity.

The more I read, the more I acquire, the more certain I am that I know nothing.

When we cannot use the compass of mathematics or the torch of experience...it is certain we cannot take a single step forward.