(1) Man has not a greater enemy than himself. 

(2) Each bird likes to hear himself sing. 

(3) Every man is best know to himself. 

(4) He that is full of himself is very empty. 

(5) Money can buy the devil himself. 

(6) Napolean himself was once a crying baby. 

(7) A man who has friend must show himself friendly. 

(8) He who does not honour his wife, dishonours himself. 

(9) Man can only be free through mastery of himself. 

(10) A fool always finds a greater fool than himself. 

(11) Each bird loves to hear himself sing. 

(12) He who allows himself to be insulted, deserves to be. 

(13) When a man is wrapped up in himself he makes a pretty little package22. 

(14) A man may build himself a throne of bayonets, but he cannot sit on it. 

(15) He that is master of himself will soon be master of others. 

(16) He that is full of himself is very [quite] empty. 

(17) The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. 

(18) Every man for himself, and the Devil take the hindmost. 

(19) No man is the whole of himself; his friends are the rest of him. 

(20) He is not fit to command others that cannot command himself. 

(21) Who shows mercy to an enemy denies it to himself. 

(22) The laws of Nature, that is to say the laws of God, plainly made every human being a law unto himself, we must steadfastly refuse to obey those laws, and we must as steadfastly stand by the conventions which ignore them, since the statutes furnish us peace, fairly good government and stability, and therefore are better for us than the laws of God, which would soon plunge us into confusion and disorder and anarchy if we should adopt them. 

(23) When a proud man hears another praised, he thinks himself injured. 

(24) A wise man never loses anything if he has himself. 

(25) The most normal and the most perfect human being is the one who most thoroughly addresses himself to the activity of his best powers,gives himself most thoroughly to the world around him,flings himself out into the midst of humanity,and is so preoccu pied by his own beneficent reaction on the world that he is practically unconscious of a sep arate existence... 

(26) Every person has two education, one which he receives from others, and one, more important, which he gives himself. 

(27) What is a man's first duty? The answer is brief ; to be himself. Sentencedict.com 

(28) Give a thief rope enough and he will hang himself. 

(29) Give a man enough rope and he will hang himself. 

(30) The fool does think he is wise, but the wise man knows himself to be a fool.