**I think it's funny when people ask why I smile so much**

Each morning when I open my eyes I say to myself: 

I, not events, 

have the power to make me happy or unhappy today. 

I can choose which it shall be.

 Yesterday is dead, tomorrow hasn’t arrived yet. 

I have just one day, today, and I’m going to be happy in it.

— Groucho Marx

(via)