Hari Seldon

"Psychohistory is the mathematical study of the reactions of human conglomerates to fixed social and economic stimuli"

"The future is not written in stone, but in probability"

"The future belongs to those who shape it"

"Only by understanding the past can we shape the future"

"The Empire is dying. That's the one lesson history teaches us"

"A psychohistorian is a man who is supposed to know all the habits of human beings"

"What is now proved was once only imagined"

"The future can be calculated if one knows the present and the laws of change"

"The galactic crisis will test the very foundations of civilization"

"History is written by those who understand psychohistory"

"The most powerful weapon is the ability to predict the future"

"The Foundation's four crises will reshape galactic civilization"

"The Fall will come, but from the ruins rises something new"

"Knowledge is power, but only if it is shared"

"The greatest threat to any empire is the ignorance of its people"

"The Fall of the Empire is inevitable, but what rises from its ashes is not"

"Education is the foundation upon which all progress is built"

"It is a mistake to overlook the obvious"

"We are not supermen. We cannot foresee the future except mathematically"

"The Foundation exists for but one purpose: to bring about the Galactic Empire in a new cycle"

"It is a mistake to accept the first answer that comes to you"

"It is forbidden to fight the Four Kingdoms with weapons of their own"

"The laws of mass psychology are as rigid as the laws of motion"

"Crises strengthen the Foundation rather than weaken it"

"Every man has the capacity within himself to achieve greatness if he but understands his purpose"

"We face the unknown not with fear but with reason and preparation"

"Patience is not the absence of action but rather the right timing of action"

"No problem of politics or social organization can be solved without first understanding human nature"

"We cannot avoid the future but we can prepare for it"

"A single idea can reshape the destiny of worlds"