Whenever a new finding is reported to the world people say - It is probably not true. Later on, when the reliability of a new finding has been fully confirmed, people say - OK, it may be true but it has no real significance. At last, when even the significance of the finding is obvious to everybody, people say - Well, it might have some significance, but the idea is not new.

Only the fools are certain and assured.

It is a human tendency "to measure truth and error by our capacity."

Obstinacy and dogmatism are the surest signs of stupidity. Is there anything more confident, resolute, disdainful, grave and serious than an ass?

I love a friendship that flatters itself in the sharpness and vigor of its communications.

Disappointment and feebleness imprint upon us a cowardly and valetudinarian virtue.

It is only reasonable to allow the administration of affairs to mothers before their children reach the age prescribed by law at which they themselves can be responsible. But that father would have reared them ill who could not hope that in their maturity they would have more wisdom and competence than his wife.