Everything you say should be true, but not everything true should be said. Voltaire
The meek shall inherit the Earth, but not its mineral rights. J. Paul Getty
Do not say, "I can't." This phrase is not Christian. Christian words are: 'I can do all things, but not by myself, but through the Lord who strengthens me.' Theophan the Recluse
A snake can change its skin but not its disposition. Persian Proverb
The cow knows the cowherd but not the owner. Ethiopian Proverb
Everybody has been young before, but not everybody has been old before. African Proverb