Men often applaud an imitation and hiss the real thing.
Every man carries two bags about him, one in front and one behind, and both are full of faults. The bag in front contains his neighbors' faults, the one behind his own. Hence it is that men do not see their own faults, but never fail to see those of others.
The cat always leaves a mark on his friend.
He collected audiences around him, and flourished and exhibited and harangued.
It is one thing to conceive a good plan, and another to execute it
Distrust interested advice.