带通滤光片
红外滤光片(玻璃)
红外截止滤光片To be prepared is half the victory.
做好准备是成功的一半。
–米格尔.德.赛万提斯
(日期：2019-10-06)
Don’t bother just to be better than your contemporaries or predecessors. Try to be better than yourself.
不要只是想着超越你的同辈或前辈，要 (日期：2014-07-07)
In life and business, there are two cardinal sins.The first is to act precipitously without thought, and the second is to not act at all.
人生及 (日期：2014-06-30)
What counts in life is not the mere fact that we have lived. It is what difference we have made to the lives of others that will determine the si (日期：2014-06-29)
There is nothing so elastic as the human mind. The more we are obliged to do, the more we are able to accomplish
人的心智比什么都有弹性，我们被要 (日期：2014-06-28)
The easiest thing in the world is to come up with an excuse not to do something. I found that the most important thing in life is to stop saying, (日期：2014-06-26)
A journey of a thousand miles begins with a single step.
千里之行，始于足下。
—老子
(日期：2014-06-23)
Happiness is like a butterfly which, when pursued, is always beyond our grasp, but, if you will sit down quietly, may alight upon you.
快乐犹如一 (日期：2014-06-21)
The unexamined life is not worth living.
混混噩噩的生活不值得一过。
—苏格拉底
(日期：2014-06-20)
You can’t have a better tomorrow if you are thinking about yesterday.
如果你还在想着昨天，那你就不会有一个更好的明天。
—查尔斯•凯特灵
(日期：2014-06-20)
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