Martin Luther King, Jr. Quote
There is little hope for us until we become toughminded enough to break loose from the shackles of prejudice, half-truths, and downright ignorance. The shape of the world today does not permit us the luxury of softmindedness. A nation or a civilization that continues to produce softminded men purchases its own spiritual death on an installment plan.
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?
Ch. 1 : A tough mind and a tender heart - Strength to Love (1963)