"A remark generally hurts in proportion to its truth."
"As regards parents, I should like to see them as highly educated as possible, and I do not restrict this remark to fathers alone."
"He's nice enough not to want to be associated with a nasty remark but not nice enough not to make it. Lacking the courage of one's nastiness does not make one nice."
"It has become almost a cliche to remark that nobody boasts of ignorance of literature, but it is socially acceptable to boast ignorance of science and proudly claim incompetence in mathematics."