1. Learning without thinking is useless. ——Confucius 2. Thinking is the self-talk of the soul. ——Plato 3. Proficiency in work is due to diligence and waste in play, success is achieved in thinking and ruined in casualness. ——Han Yu 4. I think, therefore I am. ——Descartes 5. People can become gods by thinking. ——Lamartine 6. Thinking is one of the greatest pleasures of mankind. ——Brecht 7. True knowledge and insights first come from thinking and doubting. ——Rockwell 8. Meditation is labor, and thinking is action. ——Hugo 9. Doubts grow with knowledge. ——Goethe 10. The most important thing for people is to discover themselves. Therefore, you must often think in solitude and silence. ——Nansen 11. Greatness is not only earth-shattering in his career, he is often thoughtful and silent. ——Krylov 12. Intelligence cancels fate. As long as a person is thinking, he is autonomous. ——Emerson 13. Wisdom is not the meditation of death, but the meditation of life. —— Spinoza 14. Whoever does not use his brain to think will have nothing but feelings in the end. ——Goethe 15. Talented people who are not good at thinking will surely end in tragedy. ——Gampard 16. There is no expedient that can allow people to avoid real labor-thinking. ——Edison 17. Excessively calm thinking and lack of emotional impulse will inevitably lead to psychological abnormality. ——Vasilev 18. If a person thinks too much, he will lose the joy of being a human being. ——Shakespeare