As for man, he needs to learn everything when he comes into the world; he is ignorant, and cannot even learn completely the conditions of life in twenty years. Indeed, he needs to go on learning till the end of his life.
Akiwa hawezi kujua kikamilifu hali ya maisha hata baada ya miaka ishirini, anahitaji kuendelea kujifunza kwake mpaka mwisho wa maisha yake. Anaelekea kaletwa duniani na udhaifu mwingi na kutoweza kiasi kwamba inaweza kumchukua miaka hata miwili kujifunza jinsi ya kutembea tu.