质量从来不是偶然的;它始终是智慧努力的结果。
伟大的工程是无形的——它只是无缝地运作。
悲观主义者是这种人:当他可以从两种罪恶中选择时,他把两种都选了。
The pursuit of science is more than the pursuit of understanding. It is the pursuit of wonder.
Education is the art of making man ethical.