Nature is the nest professor in the end. - Robert W. Service

There's the wretched rent to pay,
Yet I glower at pen and ink:
Oh, inspire me, Muse, I pray,
It is later than you think!

It's coming soon and soon, mother, it's nearer every day,
When only men who work and sweat will have a word to say;
When all who earn their honest bread in every land and soil
Will claim the Brotherhood of Man, the Comradeship of Toil;
When we, the Workers, all demand: `What are we fighting for?' . . .
Then, then we'll end that stupid crime, that devil's madness -- War.

This is the law of the Yukon, and ever she makes it plain:
"Send not your foolish and feeble; send me your strong and your sane --
Strong for the red rage of battle; sane for I harry them sore;
Send me men girt for the combat, men who are grit to the core