All progress depends on the unreasonable man.
The reasonable man adapts himself to the world; the unreasonable one persists to adapt the world to himself. Therefore all progress depends on the unreasonable man.
All progress is based upon a universal innate desire on the part of every organism to live beyond its income.
Without contraries is no progression. Attraction and repulsion, reason and energy, love and hate, are necessary to human existence.
Discontent is the first necessity of progress.
Restlessness is discontent and discontent is the first necessity of progress. Show me a thoroughly satisfied man and I will show you a failure.
Show me a thoroughly satisfied man - and I will show you a failure.
Every day you may make progress. Every step may be fruitful. Yet there will stretch out before you an ever-lengthening, ever-ascending, ever-improving path. You know you will never get to the end of the journey. But this, so far from discouraging, only adds to the joy and glory of the climb.
I was taught that the way of progress was neither swift nor easy.
I am suffocated and lost when I have not the bright feeling of progression.
All that is human must retrograde if it does not advance.
Show me a satisfied man, and I'll show you a failure.
We are either progressing or retrograding all the while; there is no such thing as remaining stationary in this life.
Do a little bit more than average and from that point on our progress multiplies itself out of all proportion to the effort put in.
It does not matter how slowly you go as long as you do not stop.
Unless you try to do something beyond what you have already mastered, you will never grow.
There are many ways of going forward, but only one way of standing still.
You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete.
We have not wings we cannot soar; but, we have feet to scale and climb, by slow degrees, by more and more, the cloudy summits of our time.
Little progress can be made by merely attempting to repress what is evil. Our great hope lies in developing what is good.