要理解现在，必须先理解过去。
To understand the present, you must first understand the past.
进步的最大障碍不是无知，而是知识的幻觉。
The best way to overcome fear is to face it.
Function precedes form in the evolution of mental processes.
The beauty of science lies in its ability to explain the natural world through observation and experimentation.
War is the ultimate human drama, where the best and worst of humanity is revealed.
Actions are right in proportion as they tend to promote happiness； wrong as they tend to produce the reverse of happiness.