Concerned/themes

Famous quotes containing the words concerned and/or themes:

“It is certain that the only hope of retroductive reasoning ever reaching the truth is that there may be some natural tendency toward an agreement between the ideas which suggest themselves to the human mind and those which are concerned in the laws of nature.”
—Charles Sanders Peirce (1839–1914)

“I suppose you think that persons who are as old as your father and myself are always thinking about very grave things, but I know that we are meditating the same old themes that we did when we were ten years old, only we go more gravely about it.”
—Henry David Thoreau (1817–1862)