You can reach stupidity only with a cannon ball.
Occasions are rare; and those, who know how to seize upon them, are rarer.
Don't take the bull by the horns, take him by the tail; then you can let go when you want to.
The thinner the ice, the more anxious is everyone to see whether it will bear.
Never work before breakfast; if you have to work before breakfast, eat your breakfast first.
When the truth is in your way, you are on the wrong road.