“It is not knowledge, but the act of learning, not possession but the act of getting there, which grants the greatest enjoyment.”

“It is not knowledge, but the act of learning, not possession but the act of getting there, which grants the greatest enjoyment.”

“The enchanting charms of this sublime science reveal only to those who have the courage to go deeply into it.”

“We must admit with humility that, while number is purely a product of our minds, space has a reality outside our minds, so that we cannot completely prescribe its properties a priori.”