wise enough to recognize that there are few things in this world more complex -- and , as it turns out , more fragile -- than happiness 
(ROOT (ADJP (JJ wise) (RB enough) (S (VP (TO to) (VP (VB recognize) (SBAR (IN that) (S (NP (EX there)) (VP (VBP are) (NP (NP (NP (JJ few) (NNS things)) (PP (IN in) (NP (DT this) (NN world)))) (ADJP (ADJP (ADJP (RBR more) (JJ complex)) (, --) (CC and) (, ,) (SBAR (IN as) (S (NP (PRP it)) (VP (VBZ turns) (PRT (RP out))))) (, ,) (ADJP (RBR more) (JJ fragile)) (, --)) (PP (IN than) (NP (NN happiness)))))))))))))
(ROOT (ADJP (JJ ) (RB ) (S (VP (TO ) (VP (VB ) (SBAR (IN ) (S (NP (EX )) (VP (VBP ) (NP (NP (NP (JJ ) (NNS )) (PP (IN ) (NP (DT ) (NN )))) (ADJP (ADJP (ADJP (RBR ) (JJ )) (, ) (CC ) (, ) (SBAR (IN ) (S (NP (PRP )) (VP (VBZ ) (PRT (RP ))))) (, ) (ADJP (RBR ) (JJ )) (, )) (PP (IN ) (NP (NN )))))))))))))