“Good soldiers never pass up a chance to eat or sleep. They never know how much they'll be called on to do before the next chance.”

Quoted by Bob Chieger, Was It Good For You, Too? (1983).
1980s

The Manly Wisdom of Will Rogers (2001)

Source: Along Came a Spider

In jail, Cross-Country Kline to Dove Linkhorn.
Source: A Walk on the Wild Side (1956)
Context: But blow wise to this, buddy, blow wise to this: Never play cards with a man called Doc. Never eat at a place called Mom's. Never sleep with a woman whose troubles are worse than your own. Never let nobody talk you into shaking another man's jolt. And never you cop another man's plea. I've tried 'em all and I know. They don't work. / Life is hard by the yard, son. But you don't have to do it by the yard. By the inch it's a cinch. And money can't buy everything. For example: poverty.

Lord Hornblower (1946), p. 52.

God Is An Iron (1977)
Context: Call it… joy. The thing like pleasure that you feel when you've done a good thing or passed up a real tempting chance to do a bad thing. Or when the unfolding of the universe just seems especially apt. It's nowhere near as flashy and intense as pleasure can be. Believe me! But it's got something going for it. Something that can make you do without pleasure, or even accept a lot of pain, to get it.