Short sentences about being sincere and kind:

1. It is good to treat others with "kindness", but "kindness" may not be "true". Being a kind person is not a choice, but a required course of character! Walk the world with kindness and treat kind people with truth.

2. We should be grateful to our opponents, thank our powerful opponents for the competitive pressure and challenges they give us, thank our opponents for giving us the spur to learn and the motivation to grow and progress, and behave with a kind heart.

3. Sometimes love is also a kind of hurt. Cruel people choose to hurt others, and kind people choose to hurt themselves.

4. In the process of life, old friends and new friends always come and go. Only those who are kind, sincere and frank can stand firm and not be overwhelmed by the world.

5. I am not handsome, but I will try my best to be kind. I won't give good looks to haters, but I will treat everyone who has helped me sincerely.

6. Kindness is sometimes like a knife. Because the sharp edge is inward, it hurts not others, but yourself. Blind goodness equals evil.

7. Be an honest and kind person, don’t be jealous, don’t care about anything, study more and work hard, be a good person and do good things.