如果你每天都履行自己的义务，你就不必担心未来。
If you fulfill your obligations everyday you don't need to worry about the future.
"Drawing is like a diary to me, a way of expressing my thoughts and feelings visually."
The power of positive thinking is the ability to generate a feeling of certainty in yourself when nothing in the environment supports you.
量子力学的本质在于它提供了一个数学框架，用于描述原子和亚原子粒子的行为。
能源的未来在于平衡传统资源和可再生发展。