Here is a sample of short messages I have come up with on various topics.
Truth - Using a scientific method is the only way to prove a statement to be true.
Knowledge - The only way to know that a statement is true, is to see the proof.
Belief - If you did not see the proof, you don't know, but only believe it is true.
God - There is no god.
Religion - Religion is a harmful virus of the mind.
Authority - Oppression must end.
Nations - All of today's governments are very oppressive.
Police - The police must stop oppressing people, even when the law orders them to.
Sex - Every human and animal has the right to sexual pleasure.
Nudity - Humans have the right to be nude.
Animals - Animals are the largest victims of torture.
Children - Human children are the largest victims of slavery. Their masters are their own parents.
School - School must be voluntary. Children have the right to say no.
Chores - Chores must be voluntary. Children have the right to say no.
Animal Experimentation - Nothing can justify torturing an innocent animal. Not even experimentation.
Animal Torture - There isn't a single country in today's world in which animal torture is illegal.
Courts - No court in the world follows the "innocent until proven guilty" method. The method always followed is "we decide what to do to you.".
Incarceration - Thousands of innocent people are incarcerated in every country in the world.
Total Happiness - If an action increases the total world happiness, it is still unethical if it violates one of the core rights of a single innocent being.
Prisons - It is better to free everybody in a prison than to have a single innocent person inside.
Democracy - Democracy is just people realizing that if they are the most numerous, they can organize themselves into being the most powerful.
Taxation - Taxation is the government stealing from the citizens. Taxation can only be justified when stealing is justified.
Privacy - The government has no right to read your personal diary or love letters, even if it's on a computer.