How to say the bottom line of being a human being in English

Question 1: English translation Conscience is the bottom line of life, is also the purpose of my life. Translation forConscience is the bottom line of life, is also the purpose of my life. I always remind myself that do things must be aboveboard, a clear conscience望采纳.

Question 2: No matter what you become in English how to say. I always remind myself that do things must be aboveboard, a clear conscience. 急 1 no matter how much you hav gall changed

2 as a humanbeing, there should be a bottomline for doing things