We all know, however, that the enormous weight of tradition, habit, and custom that occupies the greater part of our brain bears down pitilessly on the more brilliant and innovative ideas of which the remaining part is capable, and although it is true that, in some cases, this weight can balance the excesses and extravagances of the imagination that would lead us God knows where were they given free rein, it is equally true that it often has a way of subtly submitting what we believed to be our free will to unconscious tropisms, like a plant that does not know why it will always have to lean toward the side from which the light comes.

Autor: José Saramago