“By doubting we are led to enquiry, and by enquiry we discern the truth.”
“By doubting we come to enquiry, and through enquiry we perceive truth.”
“It is according to how we are able to answer the question of what we do (normally the first enquiry we will have to field in any new acquaintance) that the quality of our reception is likely to be decided.”
“The assumption of an absolute determinism is the essential foundation of every scientific enquiry.”
“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.”
“I never knew anyone, that examined and deliberated about nonsense, who did not believe it before the end of his enquiries.”