Answer; 1. You should observe carefully in order to understand; you should work hard to understand in order to act. ——Romain Rolland? 2. Under the support of a lofty purpose, if you work non-stop, even if it is slow, you will definitely succeed. ——Einstein? 3. If a person does not know where he is going, then any wind is not a tailwind. ——Seneca 4. Only those who propose great ideals to themselves and fight for them with all their strength are the happiest. ——Kalinin 5. The fantasy of youth is both fanatical and lovely. ——Jo Shorthouse 6 Without trying, there is no success; only facing difficulties or dangers will inspire determination and courage for a higher journey. All perseverance and hard work will be rewarded sooner or later. ——Angel? 8. The secret of success lies in perseverance and determination. ——Indizraeli? 9. Sacrifice for a great cause can never be regarded as failure. ——Byron? 10. Life is a gem that nature gives to humans to carve. ——Nobel