It's not easy to determine sincerity. Some people are more intelligent than others. Some people might lose out.

This man has spent an hour and a half with me and he has inspired me more than people I've known my entire life.

Sincerity: if you can fake it, you've got it made.

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.

A man can never hope to be more than he is if he is not first honest about what he isn’t.

A man can never hope to be more than he is if he is not first honest about what he isn’t.