The heart is devious above all else;
    it is perverse—
    who can understand it?
I the Lord test the mind
    and search the heart,
to give to all according to their ways,
    according to the fruit of their doings.

Jeremiah 17.9-10

It is the weakness of the modern age that we stupidly think that feelings should be our primary guide to truth, rather than reason and rationality.

-Donald Sensing