He does not preach what he practices till he has practiced what he preaches.

America preaches integration and practices segregation.

I do practice what I preach when it comes to nutrition.

I felt if you are going to preach this, you should practice it.

By nature, men are nearly alike; by practice, they get to be wide apart

Tsze-Kung asked, "Is there one word which may serve as a rule of practice for all one's life?" The Master said, "Is not Reciprocity such a word? What you do not want done to yourself, do not do to others