Puzzle of the Week #292 - Base 4 Code

I have taken some quotations, and I have replaced each of the letters with the numbers that denote their position in the alphabet. However, I have used the base 4 number system. 

Be careful, as some sequences of numbers could lead to several words, for instance 31110 could mean CAT (3,1,110), but could equally mean MAD (31,1,10). 

base4.JPG

12133111  3132  1112332110  1021113021110121,  2111110  12133111  3132'110  1112332110  1102011  33332103111011111132311103  3312  1112332110213213  1021113021110121.