From such crooked wood as that which man is made of, nothing straight can be fashioned.
Most of physics is about energy, and physicists understand inefficiencies. I wanted to write a book about our energy options in a neutral, human-accessible form.
What men call accident is God’s own part.
To the poet, his travels, his adventures, his loves, his indignations are finally resolved in verse, and this, in the end becomes his permanent, indestructible life.
Two things awe me most, the starry sky above me and the moral law within me.
The press should be not only a collective propagandist and a collective agitator, but also a collective organizer of the masses.
I have always used a great variety of verse forms, especially in my poetry for children. I believe that poetry begins in childhood and that a poet who can remember his own childhood exactly can, and should, communicate to children.
It is beyond a doubt that all our knowledge begins with experience.
A fresh and vigorous weed, always renewed and renewing, it will cut its wondrous way through rubbish and rubble.
If man makes himself a worm he must not complain when he is trodden on.