This thesis examines the feasibility of altruism. Before illustrating the feasibility of altruism, it is necessary to clarify some misunderstandings of altruism. In Chapter one, I discuss the traditional view - binary demarcation of morality. I argue that binary demarcation causes serious misunderstanding and fails to reflect moral issues in reality. Instead, I propose a trinary demarcation, which is more justified and closer to the reality. I also provide an alternative (i.e. Weak Egoism), which fits trinary demarcation, and combines both egoistic and non-egoistic principles. In Chapter two, I start to explicate the notion of intuitionism, which provides an alternative to other normative ethics and virtue ethics. I justify the feasibility...