The phrase aha moment” was coined by the German psychologist and phenomenologist Karl Buhler a little over a hundred years ago. He meant it as “a peculiar, pleasure-oriented experience within the course of thought that pops up with the sudden insight into a previously un-transparent context.” Now, we usually use the phrase to describe an instant at which the solution to a problem becomes clear.
Aha moment“想法乍现时”这个表达是由德国心理学家及现象学家卡尔?布勒在大约100多年前首创的。他当时对这个表达的概念是“考虑过程中一种特殊的、愉悦的体验，期间会忽然对之前并不明朗的某个局面产生深入的认识。” 目前，大家多用aha moment来表示某个问题的解决方法忽然明朗化的那个时刻。
It’s a moment of clarity, a defining moment where you gain real wisdom – wisdom you can use to change your life. Whether big or small, funny or sad, they can be surprising and inspiring.
She had that "aha moment" in the summer of 2009 when an old photo of her slimmer self made her decide it was time she took charge of her weight.