What we think is, in the adult person, very much a matter of...

What we think is, in the adult person, very much a matter of what we allow ourselves to think, and what we feel is very much a matter of what we allow ourselves to feel. Moreover, what we think is very much a matter of what we wish and seek to think, and what we feel is very much a matter of what we wish and seek to feel. In short, the condition of our mind is very much a matter of the direction in which our will is set.