機械人

（安：會唔會可以降低o的要求：唔需要”非常有料到”，而係”somehow有料到”？）

（Me：你想唔想像到我o既意思呀？呢個比喻O唔OK呀？駛唔駛諗個再勁o的咖？

Me；OK喎…我講o個陣，都諗唔到呢樣野…）

— Me@2010.01.25

Functionals of fields

However, the path integral formulation is also extremely important in direct application to quantum field theory, in which the “paths” or histories being considered are not the motions of a single particle, but the possible time evolutions of a field over all space.

Much of the formal study of QFT is devoted to the properties of the resulting functional integral, and much effort (not yet entirely successful) has been made toward making these functional integrals mathematically precise.

— Wikipedia on Path integral formulation

2010.01.25 Monday ACHK

心海 2

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The ultimate definition of success in life is

that your spouse likes and respects you ever more

as the years go by.

— Jim Collins, in his Good to Great

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— Me

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2010.01.25 Monday $copyright ACHK$