Modus Ponens

If I don't study hard, then I will not get a degree.
I don't study hard, therefore I won't get a degree.

Therefore I must study hard.

If I don't have willpower, then I will become addicted to every little useless things.
I don't have willpower, therefore I will become addicted to every little useless things.

Therefore I must have willpower.

If I plan myself and organise my time, then I will have lots of time to do fruitful work.
I plan myself and organise my time. Therefore, I will have lots of time to do fruitful work.

Therefore, I must plan myself and organise my time.

Philosophy of the day:

1) I must study hard.
2) I must have willpower.
3) I must plan myself and organise my time.