電流概念的形成是電學(xué)理論發(fā)展中最重要的步驟。
譯文：爽口的美食吃多了容易生病，高興的事過頭容易生出禍殃。賞析：任何看似令人爽口的食物吃多了，都會傷害身體，更何況那些垃圾食品呢。人在高興時，容易得意忘形，說話做事都有失妥當(dāng)。
I am always glad to think that my education was, for the most part, informal, and had its roots in the soil.
成功來自于比顧客更了解他們自己。
藝術(shù)應(yīng)該打破生活與表現(xiàn)之間的界限。
企業(yè)的目的是創(chuàng)造價值，而不僅僅是盈利。
I'm not perfect, but I'm always striving to be better.
I know what I can do, so it doesn't bother me what other people think or say.