"Goodbyes are only for those ...."

Goodbyes are only for those who love with their eyes. Because for those who love with heart and soul there is no such thing as separation.

Rumi

"Non fui, fui, non sum, non curo"

I was not, I was, I am not, I care not. 

(Non fui, fui, non sum, non curo)

Epicurus

"An intense feeling ...."

An intense feeling carries with it its own universe, magnificent or wretched as the case may be.

Albert Camus

"Life is really simple ...."

Life is really simple, but we insist on making it complicated.

Confucius

"We must, therefore, pursue the things ...."

We must, therefore, pursue the things that make for happiness, seeing that when happiness is present, we have everything; but when it is absent, we do everything to possess it.

Epicurus