Test

One day the great philosopher came upon an acquaintance met the run up to him excitedly:

- Socrates, you know what I just heard about one of your students?

- Wait a minute,  Socrates replied. Before you tell me, I'd like you to pass a little test. Three test.

- Three?

- That's right, Socrates continued. Before you talk to me about my student going to test you tell me. The first test is Truth. Are you absolutely sure that what you want to tell me is true? 

No, said the man. In fact, I just heard about it.

- E-n rule, said Socrates. So in reality, you do not know if it's true or not. Now let's try the second test, the test of Goodness. What do you want to tell me about my student something good?

- No, on the contrary ....

- So Socrates continued, want to tell me something bad about him even though you're not certain it's true?

The man shrugged, a little embarrassed. Socrates continued.

- However, you can pass the test, because there is a third test - the filter of Usefulness. What do you want to tell me about my student going for you?

- No, not really .....

- Well, concluded Socrates, if what you want to tell me is neither True nor Good nor even Useful, why tell me?