Cope’s rule states that organisms get bigger over time. But there are huge downsides to being big. There’s always a sweet spot in evolution.

When something becomes too big to manage, it can cause you to fail.

Morgan Housel is a partner at the Collaborative Fund and serves on the board of directors at Markel Corporation. He is also a former columnist at The Motley Fool and The Wall Street Journal and author of the award-winning book The Psychology of Money.

Tim Ferris a...

The way to become a great investor is to maximize the amount of dollars you accumulate over the course of your life. Most of the time, it is not earning the highest returns.

For example:

• Warren Buffett is the wealthiest investor of all time

Buffett has a great quote on wealth where he says he wants to leave his kids enough money that they can do anything, but not so much money that they could do nothing.

Give children a safety net, but not fuel. Parents shouldn't give their children money just to make their life better. Childr...

Risk is just the odds that something will prevent you from achieving your goals. Everyone has very different goals and aspirations and time horizons, so everyone thinks about risk differently.

If your goals lie 50 years in the future, you probably wouldn't ...