Winter is the reason for the spring; he who loves the spring must also love its reason!

Do not wish an everlasting spring! Without tasting the winter, you cannot get pleasure out of the spring!

If there were no mountains, humanity would be much lazier! Challenges make people hardworking!

We admire the castles, because we admire the security!

People ask whether there is Hell. Yes, there is Hell: Hate is Hell!

Thing big: Universe is a village, a small place! When you think big, all will get smaller!

Science is going to build a base on the Moon! This is a very necessary and a very possible mission! Start and finish! Thousands of problems will arise in this mission, thousands of solutions will be found! Start and finish! Moon is a good hole to enter the blood vessels of the universe. Start and finish!