儿童的一切教育都必须遵循一个原则，即帮助孩子身心自然的发展。

The only person you should try to be better than is the person you were yesterday.

对正义的评估必须基于对实际社会与可行替代方案的某种比较。

每一个现有情境都有变得更好的潜力

睡得早起得早，使人聪明、富有、身体好。

Memory is the bridge between the past and the future.

创新和技术是应对供应能源和解决气候变化的双重挑战的关键。