Miguel de Unamuno

"Time does not exist; only moments, one after another, exist."

"What is madness but sensitivity to reality?"

"Progress is only possible when we question everything."

"The purpose of life is not happiness, but meaning."

"We do not inherit the earth from our ancestors; we borrow it from our children."

"Language is the flesh of thought."

"Music is the language of the heart."

"The human soul is divided between hope and fear."

"Beauty is truth in its most concentrated form."

"To understand the world, one must understand oneself first."

"The greatest adventure is the journey within."

"Democracy requires courage, not comfort."

"We are all writers of our own destiny."

"The value of money is only in what it allows us to do."

"Health is the shadow cast by happiness."

"Creativity is the act of making something from nothing."

"The essence of freedom is the right to be wrong."

"War is the failure of imagination."

"Every person has a vocation to create, not merely to consume."

"Dreams are the truths our minds refuse to acknowledge while awake."