You can be sincere and still be stupid.
I like to have strong opinions with nothing to back them up with besides my primal sincerity. I like sincerity. I lack sincerity.
Affectation of candour is common enough; – one meets it every where. But to be candid without ostentation or design – to take the good of every body’s character and make it still better, and say nothing of the bad – belongs to you alone.
Words, words, mere words, no matter from the heart.
We must not make a false faith by hiding from our thoughts the causes of doubt, for faith is the highest achievement of the human intellect, the only gift man can make to God, and therefore it must be offered in sincerity.
Sincerity may be humble, but she cannot be servile.
People always say actors must be good at lying, but actually I think acting is completely truthful.
One should never take sides in anything. Taking sides is the beginning of sincerity, and earnestness follows shortly afterwards, and the human being becomes a bore.[to Mr. Kelvil]
It is dangerous to be sincere unless you are also stupid.
Frankness is a jewel; only the young can afford it.
All faults may be forgiven of him who has perfect candor.
Above all, don’t believe your friends when they ask you to be sincere with them.[Surtout, ne croyez pas vos amis, quand ils vous demanderont d’être sincère avec eux.]