Learning is any change in a system that produces a more or less permanent change in its capacity for adapting to its environment.
学习是系统中产生的任何变化，这些变化或多或少会永久性地改变其适应环境的能力。
"The past is a foreign country; they do things differently there."
If we don’t measure our impact, we’re just guessing at sustainability.
Le ciel est, par-dessus le toit, / Si bleu, si calme!
当农民兴旺时，社区就会兴旺。我们的重点应该始终放在为种植我们粮食的人创造价值上。