The unhappiest man on earth is the one who has nothing to do.
An Airplane takes off against the wind, not with it.
Thinking is the hardest work there is, which is probably the reason why so few engage in it.
There is no failure except failure to serve one's purpose.
The public should always be wondering how it is possible to give so much for the money.
You don't have to hold a position to be a leader.