Full Idea
A man is his own best friend; therefore he ought to love himself best.
Gist of Idea
A man is his own best friend; therefore he ought to love himself best
Source
Aristotle (Nicomachean Ethics [c.334 BCE], 1168b09)
Book Reference
Aristotle: 'Ethics (Nicomachean)', ed/tr. ThomsonJ A K/TredennickH [Penguin 1976], p.301
A Reaction
Both halves of this sound odd. Being your own best friend has all the oddness of self-identity. Maybe this sort of self-love should be resisted. Altruistic people are lovely.