Onun buluşlarının büyük bir kısmı tarihe bilinmeyen olarak kalacağı tahmin edilmektedir.
- It is estimated that a great part of his inventions would remain unknown to the date.
İki bilinmeyenli bir denklem gibiydi hepsi.
- It was all like a single equation with two unknowns.
To awaken the conscious self to the principle of the whole or Tao one needs to forget oneself, so that in knowing one unknows.