Peirce, Charles Sanders

"Ideas are powerful because they persist."

"The greatest advances come from the margins of science."

"Courage is the facing of fear without flinching."

"Love is the highest form of understanding."

"Each person is an end in themselves, never a means."

"The future is not determined; it is open."

"Wisdom is the fruit of experience and reflection."

"We learn by making mistakes."

"The world is not a mechanism but a living organism."

"Thought is a laboratory for living."

"The greatest gift is the capacity to learn."

"Peace is not the absence of conflict but its resolution."

"The essence of belief is the establishment of a habit."

"Man is not made for himself alone, but for his kind."

"The real, then, is that which, sooner or later, information and reasoning would finally result in."

"Symbols grow. They come into being by development out of other signs."

"We are all creative beings with the capacity to shape reality through our thoughts."

"The scientific spirit requires that every hypothesis should be tested."

"A person is but a symbol, a sign pointing to something beyond itself."

"Do not block the way of inquiry."

"The power of love is what makes all things possible."

"Reasoning is the great gift of man, use it well."

"The universe is perfused with signs if it is perfused with anything."

"All knowledge is obtained through observation and inference."

"The pragmatist turns toward concreteness and adequacy, toward facts."

"Our lives are not determined by what happens to us but by how we respond."

"The mind acts upon the external world through signs."

"Genuine doubt is the beginning of inquiry."

"To understand a sign is to understand its relation to other signs."

"The purpose of science is not mere accumulation of facts."