better an egg today than a hen tomorrow字面意思：今天有蛋比明天有母鸡更好，实际意思：珍惜当下（哪怕不是最好的）；当下的就够了。

【例句】
I don't want to reach for the moon. Better an egg today than a hen tomorrow.
我不要那么野心勃勃。珍惜当下的，我已经很知足了。

I think I'll keep my modest winnings rather than wagering them all on the next horse race. Better an egg today than a hen tomorrow.
我想我要保留我赢来的那点钱，而不把它们全押在下一场赛马上。今天赢那么多就够了。