I think you are a sincere young man, perhaps even a good scientist.

The sincere man would take time to study the situation and think it through, then make his decision in timely fashion.

His boyish good looks continually had him placed as the sincere and kind leading man.

I think Bush is a sincere man and he will help to put an end to this evil.

"I think your father is a sincere man," said Bego.

You can fake confidence when a sincere man might be inclined to panic.

Here is a sincere man who convinced almost everybody that he was above all this.

In that country, a sincere man would be taken for an idiot.

"He believes all men selfish, and no man honest or sincere."