The process of discovery is very simple. An unwearied and systematic application of known laws to nature, causes the unknown to reveal themselves. Almost any mode of observation will be successful at last, for what is most wanted is method.

It would be no reproach to a philosopher, that he knew the future better than the past, or even than the present. It is better worth knowing.

The poet will maintain serenity in spite of all disappointments. He is expected to preserve an unconcerned and healthy outlook over the world, while he lives.

It is reasonable that a man should be something worthier at the end of the year than he was at the beginning.

Take long walks in stormy weather or through deep snows in the fields and woods, if you would keep your spirits up. Deal with brute nature. Be cold and hungry and weary.

I do not speak to those who are well employed, in whatever circumstances, and they know whether they are well employed or not; but mainly to the mass of men who are discontented, and idly complaining of the hardness of their lot or of the times, when they might improve them.

Let Harlequin be taken with a fit of the colic, and his trappings will have to serve that mood too.