“The conquest of learning is achieved through the knowledge of languages.”

“If in other sciences we should arrive at certainty without doubt and truth without error, it behooves us to place the foundations of knowledge in mathematics...”

“Neglect of mathematics work injury to all knowledge, since he who is ignorant of it cannot know the other sciences or things of this world. And what is worst, those who are thus ignorant are unable to perceive their own ignorance, and so do not seek a remedy.”

“Wissenschaft ist Macht.”

“It is easier for a man to burn down his own house than to get rid of his prejudices.”

“Wonder is the seed of knowledge”

“If we are to achieve things never before accomplished we must employ methods never before attempted”