I thought it necessary to study history, even to study it deeply, in order to obtain a clear meaning of our immediate time.
One had to be a Newton to notice that the moon is falling, when everyone sees that it doesn't fall.
Serious people have few ideas. People with ideas are never serious.
Having precise ideas often leads to a man doing nothing.
Let us enrich ourselves with our mutual differences.
Conscience reigns but it does not govern.