This is an essay about a great humanist and the Modern Age.

The brain is considered to be the most complex machine in existence. It's the control centre for all our activities. But is it really a perfect machine?

脳は世界で一番複雑な機械だと考えられている。私たち人間のすべての活動の司令塔だ。でも、本当に完璧な機械だろうか? この質問に答える前に、本書を開いて、脳がどんなふうにできているか見てみよう。脳は間違うことだってあるんだ!

The brain is considered to be the most complex machine in existence. It's the control centre for all our activities. But is it really a perfect machine?