The planning fallacy is that you make a plan, which is usually a best-case scenario. Then you assume that the outcome will follow your plan, even when you should know better.

Every night for the next week, set aside ten minutes before you go to sleep. Write down three things that went well today and why they went well...Writing about why the positive events in your life happened may seem awkward at first, but please stick with it for one week. It will get easier. The odds are that you will be less depressed, happier, and addicted to this exercise six months from now.

Nothing in life is quite as important as you think it is while you're thinking about it.

When action is needed, optimism, even of the mildly delusional variety, may be a good thing.

The confidence people have in their beliefs is not a measure of the quality of evidence but of the coherence of the story the mind has managed to construct.

The experiencing self lives its life continuously. It has moments of experience, one after the other.

It's a wonderful thing to be optimistic. It keeps you healthy and it keeps you resilient.