I'm a big believer in 'to each his own.'
我非常相信“各有所好”。
Technological innovation without user thinking is just self-indulgence.
Machinery and labor-saving devices are only valuable as they serve to reduce the cost of manufacture.
每一次失败都是通往成功的垫脚石，只要我们从中学习。
The greatest threat to our forests is not logging, but indifference.
心理学是科学，教学是艺术；科学永远不会直接从自身产生艺术。
当不同的思想汇聚在一起时，创新就会发生。
Nothing is more beautiful than the loveliness of the woods before sunrise.