数学的研究是所有智力和精神进步不可或缺的基础。
The study of mathematics is the indispensable basis for all intellectual and spiritual progress.
"Home is not just a place; it's a feeling, a sense of belonging."
家不是一个地方,而是一种感觉。
能源独立不仅仅是一个目标;它是国家安全的必需品。