It often takes more courage to change one's opinion than to stick to it.
Many are less fortunate than you' may not be a roof to live under, but it will serve to retire beneath in the event of a shower.
The most dangerous untruths are truths slightly distorted.
Great men too make mistakes, and many among them do it so often that one is almost tempted to call them little men.
People who never have any time on their hands are those who do the least.
One's first step in wisdom is to question everything - and one's last is to come to terms with everything.