网球是一项需要你在心理和身体上都强大的运动，但心理部分更为重要。
"Tennis is a sport where you have to be strong mentally and physically, but the mental part is even more important."
凡事天下要考察有无的原则，必定是以众人的耳目所见所闻的实情以知有与无来作为标准的。
The most dangerous thought you can have as a creative person is to think that you know what you're doing.