“The most crucial problem with intellectual learning is that it receives the unknown on the grounds of the known.”
“Ideas can't die, not because they are conceived by humans, but because time begets them.”
“The intelligent have plans; the wise have principles.”
“Imagination is thinking beyond language.”
“Man is slave of emotions when they arise, and master of them when they don't.”
“Impartiality is to accept that we are partial.”