Train as hard as necessary, not as hard as possible.

‎"It's better to be fully restored and sub-prime condition, than under-restored and prime condition. It's more effective, survivable and sustainable. Every tactical athlete needs to push through illness and injury once (or infrequently) to realize the potential of their intestinal fortitude, but never daily (or even frequently) as training. You cannot adapt to illness and injury. Train as hard as necessary, not as hard as possible. To recover 100% is to adapt 100%!" - Scott Sonnon