Related:

• Most powerful is he who has himself in his own power. -- Seneca
• You can't trust a man who won't shave himself on his own hangover.
• He that uses many words for the explaining any subject, doth like the cuttlefish, hide himself for the most part in his own ink.
  -- Ray...
• He lifted himself up by his own bootstraps.
• Man is the sole animal whose nudities offend his own companions, and the only one who, in his natural actions, withdraws and hides himself from his own kind.
  -- Montaigne, "Apology for Raymond Sebonde...
• He who has an opinion of his own, but depends on the opinion and tastes of others is a slave.
  -- Klopstock...
• Every man for himself, his own ends, the Devil for all.
  -- Robert Burton (1577-1640) -- The Anatomy of Melancholy, Part iii, Sect. 1, Memb. 3...
• Man is least himself when he talks in his own person.
  Give him a mask and he will tell the truth. Oscar Wilde...
• I have often wondered how it is that every man loves himself more than all the rest of men, but yet sets less value on his own opinions of himself than on the opinions of others.
  Marcus Aurelius, Meditatio...