“Preconceived notions are the locks on the door to wisdom.”– Merry Browne Related Quotes “The only true wisdom is in knowing you know nothing.”– Socrates “He who devotes sixteen hours a day to hard study may become at sixty as wise as he thought himself at twenty.”– Mary Wilson Little “Novels are the Socratic dialogues of our time. Practical wisdom fled from school wisdom into this liberal form.”– Karl Wilhelm Friedrich Schlegel