When we put our thoughts into words, we risk being influenced without even noticing that we’re being influenced. Some of the mechanisms for that:

1. Each language has its own way of categorizing phenomena, and how a language categorizes phenomena presupposes in a hidden way certain beliefs and values.
2. Some words have valence.
3. Some words are associated with other words. If you believe a proposition made out of words, and then that word-proposition brings to mind another word-proposition, then the feeling of belief in the former proposition will add something of a feeling of belief to the latter proposition too.