Bhagavad-Gita

-The reward of all action is to be found in enlightenment.

-Seek refuge in the attitude of detachment and you will amass the wealth of spiritual awareness. Those who are motivated by the desire for the fruits of their actions are miserable, for they are constantly anxious about the results of what they do.

-Your motive in working should be to set others, by your example, on the path of duty.

Bhagavad-Gita