If we thought more for ourselves we would have very many more bad books and very many more good ones.

Be wary of passing the judgment: obscure. To find something obscure poses no difficult, elephants and poodles find many things obscure.

Once we know our weaknesses they cease to do us any harm.

He who is enamored of himself will at least have the advantage of being inconvenienced by few rivals.

I made the journey to knowledge like dogs who go for walks with their masters, a hundred times forward and backward over the same territory; and when I arrived I was tired.

A schoolteacher or professor cannot educate individuals, he educates only species.

The wisdom of providence is as much revealed in the rarity of genius, as in the circumstance that not everyone is deaf or blind.