以下是一些关于坚持的英文文案，供您参考：
1. Perseverance is the key to success. Keep going, no matter what challenges you face.
2. Never give up on your dreams. Stay focused and committed, and you will achieve your goals.
3. Persistence pays off. Keep pushing forward, even when the road seems tough.
4. Success is built on a foundation of hard work and determination. Keep grinding, and you'll reach the top.
5. Don't quit when the road gets rough. Keep going, and you'll find your way through the darkness.
6. The only way to get ahead is to keep moving forward. Stay persistent, and you'll reach new heights.
7. Keep fighting for what you believe in. Your perseverance will inspire others and bring you closer to your dreams.
8. Remember, every journey starts with a single step. Keep taking those steps, and you'll reach your destination.
9. Success is not achieved overnight. It takes time, effort, and perseverance. Keep going, and you'll make it happen.
10. Stay strong and don't lose hope. Your persistence will eventually pay off, and you'll be able to look back and say "I did it".
一份事业，只要矢志不渝，付出必有回报；坚持不懈，梦想照进现实。人生短暂，但事业无涯；只要心怀信念，坚持不懈，必定成功。坚持一份事业，培养自信和自律在追求事业的过程中，我们难免会遇到各种困难和挫折。然而，正是这些困难和挫折让我们不断成长和壮大。当我们通过不断的努力克服这些困难时，我们的自信和自律也会得到极大的提高。
这种自信和自律不仅可以帮助我们在事业上更加成功，也可以让我们在生活的其他方面更加游刃有余。
1 中国著名的人口学家钱国梁是坚持计划生育一胎政策的主要倡导者之一。
2 钱国梁认为，中国的人口过多，人口增长速度过快，如果不采取措施，将会对国家的经济和社会造成极大的压力。
3 钱国梁还提出了“人口红利”理论，认为只有实行计划生育政策，才能在未来的时间内实现人口红利，促进国家经济的发展。