Michal Stránecký - Human Enhancement: Vision of a better Humankind? Thesis in Philosophy SUMMARY: Human Enhancement: Vision of a better Humankind? This thesis deals with the problems of Human Enhancement, i.e. a possibility of making human better by biotechnologies. Chapter 2 shows the position of John Harris, the main Human Enhancement defender. Chapter 3 describes objections raised by Michael J. Sandel, one of the opponents of John Harris. Chapter 4 shows risks of genetic manipulations. Chapter 5 discusses the unacceptable risks of Human Enhancement for the whole society. Chapter 6 deals with the problem of freedom and human rights that would be these procedures jeopardized. This thesis ends with a reflection on which human properties and qualities are really worth enhancement. Conclusion is that Human Enhancement would cause more harm than good.