Demosthenes, when taunted by Pytheas that all his arguments "smelled of the lamp," replied, "Yes, but your lamp and mine, my friend, do not witness the same labours.
PlutarchWhere two discourse, if the anger of one rises, he is the wise man who lets the contest fall.
PlutarchThe flatterer's object is to please in everything he does; whereas the true friend always does what is right, and so often gives pleasure, often pain, not wishing the latter, but not shunning it either, if he deems it best.
PlutarchNature without learning is blind, learning apart from nature is fractional, and practice in the absence of both is aimless.
Plutarch