لكن بعض المشاھد محزن فعلا..وبالنسبة إلى ھذه أیضا فاني لا أغمض عیوني عنھا أیضا لأنھا في نظري تمثل جانبا من جوانب الحیاة واعتقد أن صرف العیون عن مثل ھذ… - Helen Keller

Veličanstvenost bogatstva ljudskoga iskustva izgubila bi svoju vrednost i užitak kada ne bi postojale neke prepreke koje moramo preskočiti. Trenutak osvajanja planine ne bi bio ni upola toliko prekrasan kada ne bi bilo onih mračnih dolina koje smo prebrodili.

For, after all, every one who wishes to gain true knowledge must climb the Hill Difficulty alone, and since there is no royal road to the summit, I must zigzag it in my own way. I slip back many times, I fall, I stand still, I run against the edge of hidden obstacles, I lose my temper and find it again and keep it better, I trudge on, I gain a little, I feel encouraged, I get more eager and climb higher and begin to see the widening horizon. Every struggle is a victory. One more effort and I reach the luminous cloud, the blue depths of the sky, the uplands of my desire. I am not always alone, however, in these struggles.

We differ, blind and seeing, one from another, not in our senses, but in the use we make of them, in the imagination and courage with which we seek wisdom beyond the senses.