研究学习的唯一有意义的方法是通过客观测量。
The only meaningful way to study learning is through objective measurement.
The work of art is a trace of the sacred.
The future is something we can shape, not just something that happens to us.
如果你想走得快,独自前行;如果你想走得远,结伴同行。
 我们应该为人们的诞生而哭泣,而不是为他们的死亡。