Sense is nothing but a collection of misconceptions acquired by age 18

"The reader can imagine my disappointment at realizing that most poetic sounding adages are plain wrong. Borrowed wisdom can be vicious. I need to make a huge effort not to be swayed by well-sounding remarks. I remind myself of Einstein's remark that common sense is nothing but a collection of misconceptions acquired by age 18. Furthermore: what sounds intelligent in a conversation or a meeting, or, particularly in the media, is suspicious."