Hazlitt was right.

Damn you Heinland.
  You could have finished the quote.

"Man is the only animal that laughs and weeps."

There is more,
  but I feel I have given enough clues.

I'm sure I will be echoing others words.

Thoughts are always shared.

Words come from many sources.

Beliefs can only be built upon.

Otherwise,
  like the rest of us,
   ashes to ashes,
     dust to dust.