conscience

huono omatunto

omatunto The moral sense of right and wrong, chiefly as it affects one's own behaviour.
1949, w:Albert Einstein|Albert Einstein, as quoted by Virgil Henshaw in Albert Einstein: Philosopher Scientist,

Never do anything against conscience, even if the state demands it.

“Twer is not a friend of mine testifying against me reluctantly and for conscience’ sake, as the prosecution would have you believe. He is a spy, performing his paid job.”

Thus conscience does make cowards of us all;

And thus the native hue of resolution

Is sicklied o'er with the pale cast of thought.

(ux)