Each said to himself, "I can stand this--right now--at the present moment.

Very well; I will do so, and I will refuse to look forward even five minutes to what I may have to stand," which is the true philosophy of tough times and the only effective way to endure discomfort.
By luck we reached the bottom of that canon without a fall.

It was wide, well grown with oak trees, and belly deep in rich horse feed--an ideal place to camp were it not for the fact that a thin sheet of water a quarter of an inch deep was flowing over the entire surface of the ground.

We spurred on desperately, thinking of a warm fire and a chance to steam.
The roof of the shack had fallen in, and the floor was six inches deep in adobe mud.
We did not dismount--that would have wet our saddles--but sat on our horses taking in the details.

Finally Uncle Jim came to the front with a suggestion.
"I know of a cave," said he, "close under a butte.