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Never give up. Today is hard, tomorrow will be worse, but the day after tomorrow will be sunshine.
La imaginación es el único país en el que soy libre.
Sometimes it's the journey that teaches you a lot about your destination.
采矿技术的创新对于满足世界的能源需求至关重要。
The essence of mathematics lies in its freedom.
The pleasure of not being young is that you can enjoy things without wanting to possess them.