“ The scientific imagination always restrains itself within the limits of probability. 科学想象总是在概率的范围内进行自我约束。 Thomas Henry Huxley 赫胥黎
“ The world is the true classroom. The most rewarding and important type of learning is through experience, seeing something with our own eyes. 世界是真正的教室。最有价值和最重要的学习方式是通过经验,用我们自己的眼睛看东西。 Jack Hanna 杰克·汉拿