I am 15 yrs. of age and having read several books on Philosophy, have consequently many conflicting views firmly implanted in my own mind. ... I wonder if you could advise me in any way at all on how I might be able to rid my mind of these ideas,...
Dear Mr. Rankin,
... It is not error that which is a danger to independence of mind. It is unwillingness to quesiton everything. .. This doubt is precious because it suggests an open mind. ... I only mean to suggest that truth is an elusive things, and that certainty is never available to a genuinely enquirng and independent mind.
Source: Dear Bertrand Russell, 1969
More info.: https://russell-j.com/beginner/DBR3-05.HTM