On Tyranny Part 1 notes

Do not obey in advance. Most of the power of authoritarianism is freely given. In times like these, individuals think ahead about what a more repressive government will want, and then offer themselves without being asked. A citizen who adapts in this way is teaching power.

Defend institutions. It is institutions that help us to preserve decency. They need our help as well. Do not speak of “our institutions” unless you make them yours by acting on their behalf. Institutions do not protect themselves. They fall one after the other unless each is defended from the beginning. So choose an institution you care about—a court, a newspaper, a law, a labor union—and take its side.

Beware the one-party state. The parties that remade states and suppressed rivals were not omnipotent from the start. They exploited a historic moment to make political life impossible for their opponents. So support the multi-party system and defend the rules of democratic elections. Vote in local and state elections while you can. Consider running for office.

Take responsibility for the face of the world. The symbols of today enable the reality of tomorrow. Notice the swastikas and the other signs of hate. Do not look away, and do not get used to them. Remove them yourself and set an example for others to do so.

Remember professional ethics. When political leaders set a negative example, professional commitments to just practice become more important. It is hard to subvert a rule-of-law state without lawyers, or to hold show trials without judges. Authoritarians need obedient civil servants, and concentration camp directors seek businessmen interested in cheap labor.

Be wary of paramilitaries. When the men with guns who have always claimed to be against the system start wearing uniforms and marching with torches and pictures of a leader, the end is nigh. When the pro-leader paramilitary and the official police and military intermingle, the end has come.

Be reflective if you must be armed. If you carry a weapon in public service, may God bless you and keep you. But know that evils of the past involved policemen and soldiers finding themselves, one day, doing irregular things. Be ready to say no.

Stand out. Someone has to. It is easy to follow along. It can feel strange to do or say something different. But without that unease, there is no freedom. Remember Rosa Parks. The moment you set an example, the spell of the status quo is broken, and others will follow.

Be kind to our language. Avoid pronouncing the phrases everyone else does. Think up your own way of speaking, even if only to convey that thing you think everyone is saying. Make an effort to separate yourself from the internet. Read books.

Believe in truth. To abandon facts is to abandon freedom. If nothing is true, then no one can criticize power, because there is no basis upon which to do so. If nothing is true, then all is spectacle. The biggest wallet pays for the most blinding lights.

Source: On Tyranny. Twenty Lessons from the Twentieth Century (2017) by Timothy Snyder.

Good points. On defending institutions is fine generally unless they are corrupt especially the leadership. 

As for believe in truth, not believing in truth can possibly lead to irrationality at the least and insanity at the most. Truth is an anchor. Without it the mind can get lost. Examples of untruths are: believing in men can give birth, a black man can be a white supremist, global warming can cause all sorts of things that doesn't have to do with the weather, not to mention renaming "global warming" to "climate change" a term that means nothing, etc.