[A]ll the ingenious men, and all the scientific men, and all the fanciful men, in the world,... could never invent, if all their wits were boiled into one, anything so curious and so ridiculous as a lobster.

You are literally filled with the fruit of your own devices, with rats and mice and such small deer, paramecia, and entomostraceæ, and kicking things with horrid names, which you see in microscopes at the Polytechnic, and rush home and call for brandy-without the water-stone, and gravel, and dyspepsia, and fragments of your own muscular tissue tinged with your own bile.

Cheerfulness is full of significance: it suggests good health, a clear conscience, and a soul at peace with all human nature.

Do what thou dost as if the earth were heaven, and thy last day the day of judgment.

Every winter, When the great sun has turned his face away, The earth goes down into a vale of grief, And fasts, and weeps, and shrouds herself in sables, Leaving her wedding-garlands to decay- Then leaps in spring to his returning kisses.

For science is ... like virtue, its own exceeding great reward.

Except a living man there is nothing more wonderful than a book! A message from the dead - from human souls we never saw, who lived, perhaps, thousands of miles away. And yet these, in those little sheets of paper, speak to us, arouse us, terrify us, comfort us, open their hearts to us as brothers.