It will not be we who reach Alpha Centauri, and the other nearby stars. It will be a species very like us - but with more of our strengths and fewer of our weaknesses.
It is one of the great weaknesses of reasonable men and women that they imagine that projects which fly in the face of commonsense are not serious or being seriously undertaken.
The egotistical ambition to always want to earn more money harms both the company and the individual himself. That is the biggest weakness of many managers - the financial crisis has proven this.
The weak have no place here, in this life or any other life. Weakness leads to slavery. Weakness leads to all kinds of misery, physical and mental. Weakness is death.