Hope is a good breakfast, but it is a bad supper. - Francis Bacon

"Some books should be tasted, some devoured, but only a few should be chewed and digested thoroughly."

"Friendship increases in visiting friends, but in visiting them seldom."

"Wonder is the seed of knowledge"

"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."

"For the things of this world cannot be made known without a knowledge of mathematics."