Did ever a man try heroism, magnanimity, truth, sincerity, and find that there was no advantage in them - that it was a vain endeavor?
Henry David ThoreauYou can hardly convince a man of error in a life-time, but must content yourself with the reflection that the progress of science is slow. If he is not convinced, his grand-children may be. The geologists tell us that it took one hundred years to prove that fossils are organic, and one hundred and fifty more, to prove that they are not to be referred to the Noachian deluge.
Henry David ThoreauTo him whose elastic and vigorous thought keeps pace with the sun, the day is a perpetual morning.
Henry David ThoreauAs for conforming outwardly, and living your own life inwardly, I do not think much of that. Let not your right hand know what your left hand does in that line of business. It will prove a failure.... It is a greater strain than any soul can long endure. When you get God to pulling one way, and the devil the other, each having his feet well braced,--to say nothing of the conscience sawing transversely,--almost any timber will give way.
Henry David Thoreau