Scientists and philosophers have at various times been quoted as saying: "There's nothing of which I'm absolutely sure" or "I'm not absolutely sure of anything". (Richard Feynman, for example.)
How can this logical concept be expressed in Chinese?
I've made a first attempt below:
For some reason the above translation "feels" unsatisfactory (though, that might just be due to my undeveloped "語感").
Are there any clearer ways to express this logical concept in Chinese?