Rigorous Quotes

Good business demands tough decisions based on rigorous analysis and unwavering follow-through. Emotion can't really play a part. The challenge we all face as leaders is to let the feelings churn inside you but then to present a calm exterior, and I learned to do that.

Sexual selection acts in a less rigorous manner than natural selection. The latter produces its effects by the life or death at all ages of the more or less successful individuals.