"The whole problem with the world is that fools and fanatics are always so certain of themselves, and wiser people so full of doubts."
"Of these austerer virtues the love of truth is the chief, and in mathematics, more than elsewhere, the love of truth may find encouragement for waning faith. Every great study is not only an end in itself, but also a means of creating and sustaining a lofty habit of mind; and this purpose should be kept always in view throughout the teaching and learning of mathematics."
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Source: Bertrand Russell (2015). “Mysticism and Logic and Other Essays: Top Philosophy Collections”, p.45, 谷月社
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