The theory of light was, in fact, a subject which I had studied with great interest, and I had formed a definite opinion as to the nature of light.
事实上，光的理论是我非常感兴趣的研究课题，我对光的本质形成了明确的看法。
Life is a song, sing it.
宇宙的运动是永恒的。
The future of technology depends on the diversity of those who build it.
The victim should have the right to end his life, if he wants. But I think it would be a great mistake. However bad life may seem, there is always something you can do, and succeed at. While there's life, there is hope.
大多数人都从众，他们的思想是其他人的意见，他们的生活是一场模仿，他们热衷于引旁人所述。