If you don't make mistakes, you're not trying hard enough.
When checking references for a job applicant, employers may be reluctant or prohibited from saying anything negative, so leave or send a message that says, “Get back to me if you highly recommend this applicant as super great.” If they don’t reply take that as a negative.
忠于你的心,它知道方向。
The past is a foreign country; they do things differently there.