Eureka, the triple filter

Sometimes you come across things that make so much sense you just can’t believe you hadn’t thought of it before. Why couldn’t you have put it into words this way? Or you find the information so useful that you immediately need to blog about it.

Clearly, I just had one of those moments.

I came across this little column, a thought of the day, which discusses the “Triple Filter.”

“In ancient Greece, scholar and intellectual, Dr. Socrates was reputed to hold knowledge in high esteem. One day an acquaintance met the great philosopher and said, Do you know what I just heard about one of your friend?”

“Hold on a minute,” Dr. Socrates replied. “Before telling me anything I’d like you to pass a little test. It’s called the Triple Filter Test.:

“Triple filter?” asked the man. “That’s right,” Dr. Socrates continued. “Before you talk to me about my friend, it might be a good idea to take a moment and filter what you’re going to say. That’s why I call it the triple filter test. The first filter is Truth. Have you made absolutely sure that what you are about to tell me is true?”

“No,” the man said, “Actually I just heard about it and wanted to tell it to you” “All right,” said Socrates. “So you don’t really know if it’s true or not. Now let’s try the second filter, the filter of goodness. Is what you are about to tell me about my friend something good?”

“No, on the contrary, it is bad “

“So,” Socrates continued, “you want to tell me something bad about him, but you’re not certain it’s true. You may still pass the test though. Because there’s one filter left: the filter of usefulness. Is what you want to tell me about my friend going to be useful to me?”

“No, not really.” Replied the man.

“Well,” concluded Dr. Socrates. “If what you want to tell me is neither true, nor good, and nor even useful to me, why tell it to me at all.”

You can find this daily thought and others at It doesn’t say who authored that post, but I thank them immensely.


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