You can hardly convince a man of an error in a lifetime, but must content yourself with the reflection that the progress of science is slow. If he is not convinced, his grandchildren may be.

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You can hardly convince a man of an error in a lifetime, but must content yourself with the reflection that the progress of science is slow. If he is not convinced, his grandchildren may be.

-- Henry David Thoreau

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Do not worry if you have built your castles in the air. They are where they should be. Now put the foundations under them.

-- Henry David Thoreau

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In any weather, at any hour of the day or night, I have been anxious to improve the nick of time, and notch it on my stick too; to stand on the meeting of two eternities, the past and the future, which is precisely the present moment; to toe that line. You will pardon some obscurities, for there are more secrets in my trade than in most men's, and yet not voluntarily kept, but inseparable from its very nature.

-- Henry David Thoreau

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Night is certainly more novel and less profane than day.

-- Henry David Thoreau

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Do not lose hold of your dreams or aspirations. For if you do, you may still exist but you have ceased to live.

-- Henry David Thoreau

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