Mere mental, that is, intellectual labour, is for the soul and has its own satisfaction.
It is wrong and immoral to seek to escape the consequences of one's acts.
Intolerance betrays want of faith in one's cause.
If your heart acquires strength, you will be able to remove blemishes from others without thinking evil of them.
Selfishness is blind.
My Gita tells me that evil can never result from a good action.