A man's behavior is the index of the man, and his discourse is the index of his understanding.
Ali ibn Abi TalibWhoever wants to be a leader should educate himself before educating others. Before preaching to others he should first practice himself. Whoever educates himself and improves his own morals is superior to the man who tries to teach and train others.
Ali ibn Abi TalibHe who is greedy is disgraced; he who discloses his hardship will always be humiliated; he who has no control over his tongue will often have to face discomfort.
Ali ibn Abi Talib