Thinking Methods

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Top 10 Lessons in Thinking

Here are my favorite principles of logic and reasoning, collected from Leonard Peikoff’s Objectivism: the Philosophy of Ayn Rand.

While these do stand on their own, they become most useful if you study them individually and in depth. For that, I recommend Peikoff’s book.

How to Surrender No Premise

When disputing or discussing, it’s common to grant an opponent’s premise for the sake of argument. But we don’t always need to, and it’s not always desirable.

Take this example:

One who supports “Planned Parenthood” and the harvesting of infant body parts argues as follows:

“I thought that according to Christianity all babies go to heaven anyway. So why do you care?”

See what the person is doing? He’s not advocating for his own position, but seeking merely to reduce the Christian view to absurdity.