Кратко описать свои мысли по поводу фраз:
1) if you never thought of asking a question you are not interested in having the answer;
2) great explorers went overseas because they were curious people;
3) scientific work must have no object except to find out the truth.

1. I’ve never thought about it before but I think if you meet a person for the first time, you should ask many questions about him even if you’re not interested in having the answer.

2. I think that they had an opportunity to go overseas because great explorers were educated enough, interested in many fields and not only curious of something.

3. I don’t agree with that phrase. I think that scientific work must have many different objects and finding out the truth is only one piece of their work.