"Therefore, surely, O monks, whatever form, past, future or present, internal or external, coarse or fine, low or lofty, far or near, all that form must be regarded with proper wisdom, according to reality, thus: 'This is not mine, this I am not, this is not my self.'

Anatta-lakkhana Sutta: The Discourse on the Not-self Characteristic

translated from the Pali by
N.K.G. Mendis
© 2007

http://www.accesstoinsight.org/tipitaka/sn/sn22/sn22.059.mend.html