The best thing for being sad is to learn something. That's the only thing that never fails. - T. H. White

The best thing for being sad ... is to learn something.

"The best cure for grief is learning".

A. We are more numerous than they are, therefore we have a right to their mash.
B. They are more numerous than we are, therefore they are wickedly trying to steal our mash.
C. We are a mighty race and have a natural right to subjugate their puny one.
D. They are a mighty race and are unnaturally trying to subjugate our inoffensive one.
E. We must attack them in self-defence.
F. They are attacking us by defending thelmselves.
G. If we do not attack them today, they will attack us tomorrow.
H. In any case we are not attacking them at all. We are offering them incalculable benefits.

The best thing for being sad,’ replied Merlyn, beginning to puff and blow, ‘is to learn something. That is the only thing that never fails. You may grow old and trembling in you anatomies, you may lie awake at night listening to the disorder of your veins, you may miss your only love, you may see the world about you devastated by evil lunatics, or know your honour trampled in the sewers of baser minds. There is only one thing for it then – to learn. Learn why the world wags and what wags in it. That is the only thing which the mind can never exhaust, never alienate, never be tortured by, never fear or distrust, and never dream of regretting. Learning is the thing for you. Look at what a lot of things there are to learn – pure science, the only purity there is. You can learn astronomy in a lifetime, natural history in three, literature in six. And then, after you have exhausted a milliard lifetimes in biology and medicine and theocriticism and geography and history and economics – why, you can start to make a cartwheel out of the appropriate wood, or spend fifty years learning to begin to learn to beat your adversary at fencing. After that you can start again on mathematics, until it is time to learn to plough.

Education is experience and experience is self-reliance.