Seriously, trio, before you get to logic and rhetoric stages of your education, you should start with grammar.

You don't need perfect English to ask a question on QL, but when you post such nonsense as this, how can you hope to receive an answer?

"what i mean is ,when you get decisions in a logic way i dont think all the time ends with true way (results).but also ego takes you wrong ends as well.sometimes both gives positive ends.so how to keep them seperated each other."

It's just jibber-jabber, I'm afraid. Are you talking about pragmatism versus idealism? The ego versus the super-ego? Science always being an approximation?

Honestly, how can you hope to understand our replies if we can't understand your question?