You cannot treat with all the world at once.
Lead the ideas of your time and they will accompany and support you; fall behind them and they drag you along with them; oppose them and they will overwhelm you.
The surest way to remain poor is to be an honest man.
Which is heavier: a soldier's pack or a slave's chains?
There are only two forces that unite men - fear and interest.
Men are moved by two levers only: fear and self interest.