Success is not final, failure is not fatal: it is the courage to continue that counts.

"A personality is a full congress of orators and pressure groups, of children, demagogues, communists, isolationists, war mongers, mugwumps, grafters, prayer-makers, adventurers and clerks; with each of these in a minority of one."

知识最大的敌人不是无知，而是知识的幻觉。