What is trust ...

I finished The Cleansing Flames by R.N. Morris last night (review soon). It has a number of nice observational touches. I liked this one about the relative, provisional nature of trust. A very poststructural argument.

'Can I trust you? Can you trust me? Can he trust us? I mean to say, my dear Kirill Kirillovich, that trust is always relative, always provisional, always unstable. Trust, whatever it is, is a highly volatile substance. I am not sure it even exists at all. And so, there is no meaningful answer to the question you asked. One must act as if there is trust between us, otherwise we could get nothing done. Still and all, at the same time, one must never lower one's guard. In essence, trust no one. Do not even trust yourself, Kirill Kirillovich.'