在数学中，提出问题的艺术必须比解决问题更有价值。
In mathematics, the art of proposing a question must be held of higher value than solving it.
The best fertilizer? A farmer's footsteps in the field.
"You have to be willing to take risks to achieve great things."
不慎重的话语会导致苦难，而温和的言语能带来和平。
Whereof one cannot speak, thereof one must be silent.
预测未来的最好方式就是创造它。