[King Leonidas to his son]
"Now, the more you sweat here,
the less you'll bleed in battle."
There is disagreement on the origin of the proverb, but it's been attributed to the ancient Chinese, Navy Seal Motto, or M.W. van Swieten in variations of the same theme:
"The more you sweat in training, the less you will bleed in battle."
Such a keen and inspirational observation! Anytime I wanted motivation to keep working, this was my go-to for an instant second wind.