抉择的方法

A PSYCHOLOGICAL TIP by Piet Hein

Whenever you're called on to make up your mind,
and you're hampered by not having any,
the best way to solve the dilemma, you'll find,
is simply by spinning a penny.
No -- not so that chance shall decide the affair
while you're passively standing there moping;
but the moment the penny is up in the air,
you suddenly know what you're hoping.

皮特‧海恩(Piet Hein, 1905-1996)是具有廣泛興趣的丹麥詩人及科學家。他最有名的诗集叫Grook或Gruk，丹麦语，意思是表达智慧的幽默诗 humorous poem which express wisdom。

从以上的诗，我们可以体会到皮特‧海恩的幽默，在无法made up your mind时，为何不spin a penny，因为，当你在spinning penny的当下，或许你suddenly know what you're hoping.

皮特‧海恩也是一位数学家，索玛立方块(Soma Cube)是他的发明。1936年，皮亞特‧海恩在聆听伟纳‧海森伯格演讲“量子物理”的场合，構思出索玛立方块。

索玛立方块(Soma Cube)就是：