John Greenleaf Whittier
"For of all sad words of tongue or pen, The saddest are these 'It might have been' "
"In any man who dies there dies with him, his first snow and kiss and fight... Not people die but worlds die in them. "
"No longer forward nor behindI look in hope or fearBut, grateful, take the good I findThe best of now and here. "
"The saddest thing of word or pen, To know the things that might have been. "