The first erroneous assumption is that quality means goodness, or luxury, or shininess, or weight. Quality means conformance to requirements.

The most damaging phrase in the language is: 'It's always been done that way.'

There's only one corner of the universe you can be certain of improving，and that's your own self.

只有当人能够察看自己的内心深处时，他的视野才会变得清晰起来。向外看的人是在梦中、向内看的人是清醒的人。

毁灭过往所有文明的原因在于财富和权力的不均分配倾向。