You get lazy because, well, you don't care, this is often a sign of aimlessness or depression.

你变得懒惰是因为你不在乎，这往往是盲目或抑郁症的标志。

Nevertheless Bismarck's primum mobile was neither the will to power nor the desire for fame — as to witness his long period of aimlessness in youth.

尽管如此，俾斯麦的首要动机既不是权力意志， 也不是名利欲望——可见他青年时期长期漫无目的。

Perhaps the acute sense of aimlessness you experience when you're bored gets out of control, and makes you question what you're doing with your life as a whole.

也许当你感到无聊时， 你所体验到的强烈的漫无目的感会失去控制，并让你质疑你的整个生活都在做什么。