Karl Popper

"Wars are not won by weapons alone but by the will to persevere despite losses."

"A just society is one that protects the rights of minorities even when it is unpopular to do so."

"Patience is the virtue of those who understand that great things take time to achieve."

"Gratitude is not just a moral sentiment; it is the foundation of social cooperation."

"Fear is the great teacher, if we are willing to listen to what it has to tell us."

"The measure of a person's courage is not the absence of fear but the action taken despite it."

"Solitude is essential for the development of the inner life and the cultivation of wisdom."

"Relationships are the crucible in which we discover who we truly are."

"The greatest gift we can give another person is our honest attention."

"Death is not the end of life; it is the punctuation mark that gives life meaning."

"The growth of knowledge is the only infinite thing we truly possess."

"We must plan for freedom, and this means we must make distinctions."

"Science begins with problems, not with observations."

"The attempt to make heaven on earth produces hell."

"We are not students of some subject matter, but students of problems."

"True ignorance is not the absence of knowledge, but the refusal to acquire it."

"The more we learn about the world, and the deeper our learning, the more conscious, specific, and articulate will be our knowledge of what we do not know."

"Institutional power can only be tamed by distributing it among competing institutions."

"I may be wrong and you may be right, and by an effort, we may get nearer to the truth."

"Education should aim at destroying our enemies...the enemies within: stupidity, prejudice, and hypocrisy."

"The paradox is only a conflict between reality and your feeling of what reality ought to be."

"In mathematics and physics, the Babylonians had made great progress, but they were unable to explain the causes of phenomena."

"Every solution to a problem creates new problems."

"The open society is one in which men are convinced that no one possesses the ultimate truth."

"Criticism of my own views is of course something I am very much interested in."

"Misery and suffering are not necessary for the reform of institutions; we can reform them by the use of reason and argument."

"I approach the problem of the starting point of human knowledge as follows."

"There is no history of mankind, there is only a history of the widening of human consciousness."

"The good society is one that liberates man's creative powers to the greatest extent."

"We cannot avoid the problems of this world by escapism or wishful thinking."