But we must not stop with the cultivation of a tough mind. The gospel also demands a tender heart. ... What is more tragic than to see a person who has risen to the disciplined heights of toughmindedness but has at the same time sunk to the passionless depths of hardheartedness?

Culture of the mind must be subservient to the heart.

When I cannot sing my heart, I can only speak my mind.

Mind precedes all mental states. Mind is their chief; they are all mind-wrought. If with a pure mind a person speaks or acts happiness follows him like his never-departing shadow.

A lot of people have pretty little heads, but it's difficult to find a pretty little mind.

Lose your dreams and you might lose your mind.