A little sincerity is a dangerous thing, and a great deal of it is absolutely fatal.
Sentiment: NEGATIVE
It is dangerous to be sincere unless you are also stupid.
Sincerity is moral truth.
Sincerity is like traveling on a plain, beaten road, which commonly brings a man sooner to his journey's end than by-ways, in which men often lose themselves.
Unless you can fake sincerity, you'll get nowhere in this business.
Sincerity is not a spontaneous flower nor is modesty either.
I come from one of these hideous backgrounds where being sincere is like - ugh, you might as well kill yourself.
How can sincerity be a condition of friendship? A taste for truth at any cost is a passion which spares nothing.
Sincerity: if you can fake it, you've got it made.
I never find sincerity offensive... so, be sincere.
Sincerity is the way to heaven.