So it is with all crude attempts where the principal part of the business depends on the use of reason, a use which does not come of itself, like the use of the feet, by frequent exercise, especially when attributes are in question which cannot be directly exhibited in common experience.
erabilera hau ez baita lortzen ariketa sarriarekin, oinen erabilerarekin gertatzen den modura, batez ere esperientzia orokorrean hain bitartekorik gabe aurkezten uzten ez diren ezaugarriak daudenez.