Nip it in the bud.
More Traditional Proverbs:
The key to all problems is the problem of consciousness.Traditional
The key to all problems is the problem of consciousness.
Traditional
When the stars begin to huddle, The earth will soon become a puddle.
Traditional
The anger of a good man lasts an instant that of a meddler two hours that of a base man a day and a night and that of a great sinner until death.
Traditional
Everything tempts the man who fears temptation
Traditional
Great is the victory that is gained without bloodshed.
Traditional