The question is, are we happy to suppose that our grandchildren may never be able to see an elephant except in a picture book?
问题是，我们是否乐于假设我们的孙子孙女可能永远无法在大象的图片书之外看到大象？
心灵不是世界的被动镜子，而是构建现实的积极参与者。
The only learning which significantly influences behavior is self-discovered, self-appropriated learning.
Escribir es un acto de libertad, una manera de decir lo que no se puede decir de otra forma.
Agricultural R&D should be close to actual needs and not divorced from the production front.