The most important rule in investing is not to lose your initial capital. Making money comes later. If you lose 50% of your principal, the loss rate is 50%, but to recover that principal, you need a 100% return. This is because the baseline of your return—the principal—has already been halved. Many people tend to think that if they’ve lost 50%, they only need a 50% return to break even. However, this is a misunderstanding of the starting point. In investing, the baseline is always the original principal. The principal after a loss is no longer the same; it’s already in the past. - Joseph’s “just my thoughts”
There are two kinds of knowledge in the world. The knowledge I can explain, and understand I know but cannot explain. To explain it to others, you must see the essence of that knowledge. The knowledge that others cannot understand means that the person describing it does not know its nature. So the secretary becomes wise. - Joseph’s “just my thoughts”