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The hardest work in the world is that which should have been done yesterday.

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The grandest of all laws is the law of progressive development. Under it, in the wide sweep of things, men grow wiser as they grow older, and societies better.

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All progress is based on a universal innate desire on the part of every organism to live beyond its income.

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We ought not be over anxious to encourage innovation, in case of doubtful improvement, for an old system must ever have two advantages over a new one; it is established and it is understood.

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Furious activity is no substitute for understanding.

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All our progress is an unfolding, like a vegetable bud. You have first an instinct, then an opinion, then a knowledge as the plant has root, bud, and fruit. Trust the instinct to the end, though you can render no reason.

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The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

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It is curious to note the old sea-margins of human thought. Each subsiding century reveals some new mystery; we build where monsters used to hide themselves.

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By a peculiar prerogative, not only each individual is making daily advances in the sciences, and may makes advances in morality, but all mankind together are making a continual progress in proportion as the universe grows older; so that the whole human race, during the course of so many ages, may be considered as one man, who never ceases to live and learn.

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The true law of the race is progress and development. Whatever civilization pauses in the march of conquest, it is overthrown by the barbarian.

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