I have; and a quick eye and a quick brain.

不错，而且眼睛亮，脑子快。

youdao

It's all about quick feet and a quick brain.

关键是脚下要快，脑子要快。

youdao

Football is a good team game, it is good exercise for the body, it needs skill and a quick brain, it is popular and it is cheap.

足球是一个好的团队游戏，它对身体是良好的锻炼，它需要技巧和敏捷的头脑，它受欢迎并方便。

youdao

Freelancers like Serge Milman require nothing more than a quick brain and some money.

FORBES: Guerrillas on Wall Street

One that says mental illness is all about identifying some chemical imbalance in the brain and developing a quick-fix drug to correct it.

BBC: A golden age of discovery in neuroscience

I've talked before in this column about the capability of Facebook and other social media to threaten relationships: They provide a sense of instant gratification that stimulates our brain's reward centers, offering quick hits of novelty that can be downright addictive.

CNN: Your smartphone may be powering down your relationship