Sincere — that was the hell of it. From a distance, one's adversaries seemed fiends, but with a closer view, one saw the sincerity and it was as great as one's own. Perhaps Satan was the sincerest of the lot.

I am playful in words but sincere in action.

Sincerity is the highest complement you can pay

Sincerity is not only effective and honourable, it is also much less difficult than is commonly supposed. To take a trifling example: If for some reason I cannot, or do not, choose to verify a quotation which may be useful to my purpose, what is to prevent my saying that the quotation is taken at second-hand? It is true, if my quotations are for the most part second-hand and are acknowledged as such, my erudition will appear scanty. But it will only appear what it is. Why should I pretend to an erudition which is not mine? Sincerity forbids it.

Sincerity is the surest road to confidence.

Sincerity is a matter of intent and hard to prove. We can achieve our goals by having a sincere desire to help others.

I love insult, it's always honest.

The secret is the secret. Sincerity is the word.

Though sincerity and confidence have many points of resemblance, they have yet many points of difference. Sincerity is an openness of heart, which shows us what we are, a love of truth, a dislike to deception, a wish to compensate our faults and to lessen them by the merit of confessing them.

Sincerity! All my life I have been reproved for attempting to use this word, and rightly so because the very notion of sincerity implies a consciousness of one’s self as a circumscribed entity, a ‘single one’ (Kierkegaard) or a ‘unique one’ (Stirner), to be defined and defended, and that state of self-consciousness is itself insincere.

Sincerity is an openness of heart; we find it in very few people; what we usually see is only an artful dissimulation to win the confidence of others.

Living authentically is the best form of resistance.

Sincerity is humility, and you acquire humility only by accepting humiliations.

Sincerity is the way to Heaven.