Quote by Eckhart Tolle
"The primary cause of dissatisfaction is mental time travel."
More from Eckhart Tolle
"The present moment is filled with joy and peace. If you are not experiencing it, it is because you are living in your mind instead of in the now."
"Wherever you are, be all there."
"The primary cause of unhappiness is never the situation but your thoughts about it."
"Don't seek happiness. If you seek it, you won't find it, because seeking is the antithesis of happiness."