填空题
Effort is the essence of happiness：there is no happiness
except as we take on challenges.Short of the
impossible，the satisfactions we get from a lifetime depend
on how high we place our difficulties.The mortal flaw in
the advertised version of happiness is in fact that it claims 【S1】______
to be effortless.
We demand difficulty ever in our diversions （娱乐）.【S2】______
We demand it because without difficulty there can be no
game；a game is a way of making something easy for the 【S3】______
fun of it.The rules of the game are an arbitrary addition of
difficulty.It is easier to win a chess if you are flee to change 【S4】______
the rules，but the fun is in winning within the rules.If we
could mint （铸造）our own money，even building a fortune
will become boring.No difficulty，no fun.【S5】______
Happiness is never more than partial.Whoever else 【S6】______
happiness may be，it is neither in having nor being，but in 【S7】______
becoming.What the writers of the Constitution declared
for us as an inherent right was not happiness but pursuit 【S8】______
of happiness.What the early patriots may have underlined，【S9】______
could they have foreseen the happiness-market，is the
cardinal fact that happiness is in the pursuit itself，【S10】______
in the pursuit what is engaging and life-changing，which is to say，
in the idea of becoming.A nation is not measured by what it
possesses or wants to possess，but by what it wants to
become.