Think of what you say

For Socrates a man came running and said:.
- Listen, Socrates, I must tell you that your friend....
- Wait, wait - Socrates interrupted. - Do you have sifted what you want to tell me three screens?.
- What?.
- First - it is a sieve of truth: what you're saying - is that true?.
- I do not know, I 've heard....
- Enough! .
- Do not know. Probably not!.
- Um, well, then proseem even through a third screen: is it really necessary that you told me something with which you come?.
- No need for that!.
- And then - the wise man said - if this is not no truth, nor kindness, nor the need, then leave it! .