Hate is too heavy a burden to bear.

Hate multiplies hate, violence multiplies violence, and toughness multiplies toughness in a descending spiral of destruction.

There is such a thing as being too late. This is no time for apathy or complacency. This is a time for vigorous and positive action.

What is more tragic than to see a person who has risen to the disciplined heights of tough-mindedness but has at the same time sunk to the passionless depths of hard-heartedness?

While the question of who killed President Kennedy is important, the question 'what killed him' is more important.

Violence never brings permanent peace. It solves no social problem: it merely creates new and more complicated ones.

Let us not wallow in the valley of despair.