Without continual growth and progress, such words as improvement, achievement, and success have no meaning.

There can be no progress without head-on confrontation.

The problem of political theory is how to combine that degree of individual initiative which is necessary for progress, with the degree of social cohesion which is necessary for survival.

The Victorian Age, for all its humbug, was a period of rapid progress, because men were dominated by hope rather than fear. If we are again to have progress, we must again be dominated by hope.

So long as there is death there will be sorrow, and so long as there is sorrow it can be no part of the duty of human beings to increase its amount, in spite of the fact that a few rare spirits know how to transmute it.

Progress is impossible without change, and those who cannot change their minds cannot change anything.

I don't know where I'm going, but I'm on my way.