A knife of the keenest steel requires the whetstone, and the wisest man needs advice.
Do not lose joy in life as you grow old in years. Let not your 'joie de vivre be crushed under the weight of years.
You shall love peace as a means to new wars - and the short peace more than the long.
Excessive liberty and excessive servitude are equally dangerous, and produce nearly the same effect.
All flows out from the Deity, and all must be absorbed in Him again.
Do not hold grain waiting for higher prices when people are hungry.