Although this is good in some cases, no one has an unlimited source of mental and physical energy.

虽然这在某些情况中是好事，但没有人的精神和体力是取之不尽、用之不竭的。

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Whether that's setting up a system so that you can be more productive or whether it is a task that is going to take more mental and physical energy to complete, do those things off the top.

无论是建立一个让你更有效率的系统还是需要你花很多脑力体力完成的任务，都把它们放到后面去做。

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Physical, mental, emotional, and social are all different dimensions of energy.

身体、心理、情感和社交是精力的各个不同范畴。

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Even when you manage to get all those payments made on time each month, it takes an enormous amount of mental and physical energy just to keep up.

FORBES: Financial Chore #3: Consolidate Your Debt