You can't manage what you don't measure, and you can't improve what you don't manage.

The only way to learn a new programming language is by writing programs in it.

投资当地社区不是慈善，而是明智的商业行为。

人的手十分精细和复杂，它不仅使心灵得以展现，还能使人跟整个环境建立一段特殊的关系。