I remember my friend Johnny von Neumann used to say, 'with four parameters I can fit an elephant, and with five I can make him wiggle his trunk.'

一个好故事应该既让舒适者不安，又让不安者舒适。

华德福方法的核心是教育是一门艺术——它必须与孩子的经验对话。要教育整个孩子，必须触及他的心灵和意志，以及头脑。

Drones are not toys, but tools to transform industries.

Tudo vale a pena quando a alma não é pequena.

为你，千千万万遍。