怎樣認知費氏二原則

費氏科學兩原則：1）固執原則，The principle of tenacity tells us to hold onto attractive theories despite initial problems and allow them a chance to develop their potential. 2）增生原則The principle of proliferation tells us to make up new theories， propose new ideas. 費氏的原則部分地説明了為什麼科學需要新穎觀點的介入。但他缺乏的是拋棄和淘汰不良觀點的機制。我們需要選擇機制來解決實踐性問題。