Behavior that is aimed at another, requires some self-sacrifice, and is not performed for personal gain, defines

Behavior that is aimed at helping another, requires some self-sacrifice, and is not performed for personal gain, defines: Altruism

one example of Altruism can be seen on what bill gates doing with his wealth. Rather than choosing to invest his capital into more business to generate more profit, he chooses to spend it to help less-developed countries.

Hamlet's fourth soliloquy is probably his most famous one - "to be or not to be."it is rather different from his previous soliloquies because now he is contemplating something that didn't come up before - suicide. he is thinking whether it is worth it to fight to find his father's murderer when in the end all of them are going to die, so why not die sooner than later. he is contemplating if he should go on fighting or just kill himself and end it all, which is why this soliloquy in particular is rather depressing, hesitant, and gives a deeper insight into hamlet's madness.