Sincerity is a feature that allows is to respect and trust as the fellowship with. If they're sincere, it will become unlikely Fellowship. Therefore, we should conduct themselves as people with sincerity, always.
Sincerity is a feature that allows a respect and trust. Is an association with Without sincerity, it becomes an unlikely association. So we should behave as someone who is always sincere.
Sincerity is a feature that helps to accept the respect and trust. It is sort of the association. If sincere will become not pleasant associations. So we should behave as people with sincerity.