The belief in the freedom of thought should always be the highest of values/beliefs/human rights/commandments. Without it there is no imagination, opinion, expression, speech - without it there is/are no god/s, nor the possibility to think or say or write "there is/are no god/s".
Know your thoughts, feelings, ideas, hopes, dreams etc. Know your body. Know your history. Know yourself as star stuff. Know yourself as social entity. Know yourself as one of many human beings. Know yourself as individual. Know yourself as virtually enhanced person/a/lity.