When we see persons of worth, we should think of equaling them; when we see persons of a contrary character, we should turn inwards and examine ourselves.

Confucius
Profession: Philosopher
Nationality: Chinese

Some suggestions for you :
Without knowing the force of words, it is impossible to know more.
He who wishes to secure the good of others, has already secured his own.
If you expect great things of yourself and demand little of others, you'll keep resentment far away.
Don't complain about the snow on your neighbor's roof when your own doorstep is unclean.
The gentleman understands what is moral. The small man understands what is profitable.
By nature, men are nearly alike; by practice, they get to be wide apart.
When respect is shown according to what is proper, one keeps far from shame and disgrace.