Self-conceit is the enemy of progress.
Bion of Borysthenes (c. 325-c. 250 BC) Greek philosopher, cynic, wit
In Diogenes Laërtius, Bion, 4.50
Self-conceit is the enemy of progress.
Bion of Borysthenes (c. 325-c. 250 BC) Greek philosopher, cynic, wit
In Diogenes Laërtius, Bion, 4.50
