Without a struggle, there can be no progress.
Progress lies not in enhancing what is, but in advancing toward what will be.
Few men progress, except as they are pushed along by events.
Progress is man’s indifference to the lessons of history. ~
The progress of the world is the history of men who would not permit defeat to speak the final word.
Progress is impossible without change, and those who cannot change their minds cannot change anything.
Man is a progressive being, and every enterprise in which he engages should be carried forward in obedience to this law of his nature. ~
Intellectually, as politically, the direction of all true progress is towards greater freedom, and along an endless succession of ideas.
There is a period of life when we go back as weal advance. ~
The reasonable man adapts himself to the world: the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.