“The key to wisdom is this -- constant and frequent questioning ... for by doubting we are led to question and by questioning we arrive at the truth.”
“Assiduous and frequent questioning is indeed the first key to wisdom... for by doubting we come to inquiry; through inquiring we perceive the truth...”
“The beginning of wisdom is found in doubting; by doubting we come to the question, and by seeking we may come upon the truth.”
“By doubting we come to the question, and by questioning we may come upon the truth.”
“We will discover nothing if we bind ourselves to accepted wisdoms. Questioning is necessary for discovery.”
“The key question isn't 'What is Evil?' The key question is 'When does the Good become Evil?”