He alone is poor who does not possess knowledge.
没有知识，才是贫穷。
Knowledge, as a important part of wisdom, can be converted into wealth, especially in this fast-developing world, because it is becoming more and more technology-driven, those people with good ideas and knowledge, as well as unique skills can easily transform what they have into wealth, considerable amounts of wealth.
So, we can say that he who doesn't possess knowledge is poor.
However, in the other hand, transforming knowledge into wealth may be quite difficult, for the process requires a lot of resources other than knowledge itself.
It may be much more easier if you can combine your knowledge and your wisdom with others' resources. And that is also a extremely valuable knowledge.
The secret to happiness is freedom. And the secret to freedom is courage.
快乐的秘诀是自由，而自由的秘诀是勇气。
Many people, like me, feel unhappy about life, because sometimes we have to do somethings we don't love.
We succumb to a life of banality, doing things we don't love but we have to do.
Actually we have always known what we want to do, but we may have no courage to pursue those things.
We are limited by our thoughts.
Screw up your courage to make some changes, to be your own boss, to do what you love, then happiness is coming.
But how to find happiness in the ordinary life if we find we are just mediocritie but with great hopes?