The interest of the behaviorist in man's doings is more than the interest of the spectator—he wants to control man's reactions as physical scientists want to control and manipulate other natural phenomena.
气味受体和嗅觉系统的组织结构的发现为神经科学和生物学的研究开辟了新的途径。
The tree of liberty must be refreshed from time to time with the blood of patriots and tyrants.