In this teaser you are to try and discover the quotation concealed in the lines. The quote has been broken up into two-letter fragments. Furthermore, I have removed any punctuation and jumbled the two-letter fragments about so the word order has been disarranged. You have to rearrange the quotation and decide where the words begin and where they end. Good luck!

cp ra bo ec nr ae st nt ci en ra tw ni co en si sa tp hk er ap re tn lo bf ik eh ew pf di un jg ul pa wl im ti he oy en cs tm qe ru id ar yd