"The snake which cannot cast its skin has to die. As well the minds which are prevented from changing their opinions; they cease to be mind."
"Never doubt that a small group of thoughtful, committed, citizens can change the world. Indeed, it is the only thing that ever has."
"The world as we have created it is a process of our thinking. It cannot be changed without changing our thinking."
"I wanted to change the world. But I have found that the only thing one can be sure of changing is oneself."
"No great idea in its beginning can ever be within the law. How can it be within the law? The law is stationary. The law is fixed. The law is a chariot wheel which binds us all regardless of conditions or place or time."
"Pessimists are usually right and optimists are usually wrong but all the great changes have been accomplished by optimists."
"True life is lived when tiny changes occur."
"You really can change the world if you care enough."
"We change the world not by what we say or do, but as a consequence of what we have become."
"Those who cannot change their minds cannot change anything."
"The changes we dread most may contain our salvation."
"Life belongs to the living, and he who lives must be prepared for changes."