"I will give you a talisman. Whenever you are in doubt, or when the self becomes too much with you, apply the following test. Recall the face of the poorest and weakest man whom you have seen, and ask yourself if the step that you contemplate is going to be of any use to him. Will he gain anything by it? Will it restore him to a control over his own life and destiny? In other words, will it lead to swaraj (self rule) for the hungry and spiritually starving millions? Then you will find your doubts and yourself melting away."
“If there is anything not yet studied, or studied but not yet understood, do not give up.
If there is any question not yet asked, or asked but it's answer not yet known, do not give up.
If there is anything not yet thought over, or thought over but not yet apprehended do not give up.
If there is anything not yet sifted, or sifted but not yet clear, do not give up.
If there is anything practised, or practised but not yet earnestly, do not give up.
If another succeeds by one effort, I will use one hundred efforts.
If another succeeds by ten efforts, I will use a thousand efforts.
If one really follows this course, though stupid, will surely become intelligent,
and though weak, will surely become strong.”
Doctrine of the Mean