Certain things

List 10 things you know to be absolutely certain.

Time
Universe
Existence
Rate of change
Past, present, future
Universal gravity
Conservation of angular momentum
Law of inertia
Rotation of earth
Day and night.
Earth’s gravity
Law of attraction
Keeps us grounded
Attraction between two
Love and emotions
Law of motion
Rotation
Reference point
Acceleration
Relativity
1+1=2
Pythagoras theorem
Algebra
Geometry
Calculus
Natural law
Living and non living
Oxygen and carbon
Biological and non biological
Breath and photosynthesis
Birth and death
Start and end
Happy and sad
Good and bad
Profit and loss
Human perception
Arguments
Limitations
Potential
Understanding
Life is worth living
Dipression
Anxiety
Struggle
Achivement.
Humanity
Brotherhood
Mercy
Kindness
Compassion.