The book is based on personal experience.

本书是根据个人经历写成的。

The novel is written from personal experience.

这部小说是根据个人亲身经历写成的。

He learned this lesson the hard way – from his own personal experience.

他惨痛地得到了这一教训–从他自己的亲身经历中得来的。

My personal experience with this diet.

我对该饮食法的个人体验。

I say this from personal experience.

我这样说纯粹是出于个人体验。