物理定律是普适的,在像银河系中心这样的极端环境中测试它们是至关重要的。
心理学家必须是一个严格的实证主义者。
The best preparation for good work tomorrow is to do good work today.
The mother-child relationship is paradoxical and, in a sense, tragic. It requires the most intense love on the mother's side, yet this very love must help the child grow away from the mother, and to become fully independent.