The study of mathematics is the indispensable basis for all intellectual and spiritual progress.
我是冠军,因为我的思维像冠军。
文化唯物主义基于一个简单的前提,即人类社会生活是对地球生存实际问题的回应。
Tennis is a mental game. Everyone is fit, everyone hits great forehands and backhands – it’s the upstairs that counts.