When you're responsible for feeding families, every decision carries weight.
The only limits in life are the ones you make.
数学不是沿着一条清理得很好的高速公路小心行进，而是一次进入陌生荒野的旅程，探险者常常会迷路。
在数学中，发现的旅程往往比目的地本身更有价值。
The voice of indigenous communities must be heard in forest conservation efforts.
