Socratic paradoxes
Many of the beliefs traditionally attributed to the historical Socrates have been characterized as "paradoxical" because they seem to conflict with common sense. The following are among the so-called Socratic paradoxes:
No one desires evil.
No one errs or does wrong willingly or knowingly.
Virtue—all virtue—is knowledge.
Virtue is sufficient for happiness.
The statement "I know that I know nothing" is often attributed to Socrates, based on a statement in Plato's Apology