Nobody knows enough, but many know too much

Oh happy pessimists! What a joy it is to them to be able to prove again and again that there is no joy.

We are so vain that we even care for the opinion of those we don't care for.

In youth we learn; in age we understand.

We are so vain that we even care for the opinion of those we don't care for.

Fear not those who argue but those who dodge.