Sense of Truth

Don't ask about caste or riches but instead ask about conduct. Look at the flames of a fire. Where do they come from? From a piece of wood—and it doesn't matter what wood. In the same way, a wise person can come from wood of any sort. It is through firmness and restraint and a sense of truth that one becomes noble, not through caste.

-Sutta Nipata

by self alone

By self alone is evil done, by self alone does one suffer.
By self alone is evil left undone,
by self alone does one obtain Salvation.
Salvation and Perdition depend upon self; no man can save another.

-Dhammapada 165

This self is one with the Absolute, God, even Christ.