More from Ayn Rand
- The Virtue of Selfishness (1964)
The ladder of success is best climbed by stepping on the rungs of opportunity.
More about knowledge
- ?UnattributedOften credited to Albert Einstein
Socrates470–399 BCII: xxxi. Original Greek: ἓν μόνον ἀγαθὸν εἶναι, τὴν ἐπιστήμην, καὶ ἓν μόνον κακόν, τὴν ἀμαθίαν

