Cogito cogito ergo cogito sum -- I think I think, therefore, I think I am. -Ambrose Bierce

Dubito ergo sum - I doubt therefore I am

Cogito cogito ergo cogito sum (I think that I think, therefore I think that I am.) -Ambrose Bierce

Bibo, ergo sum. - I drink, therefore I am

Cogito ergo spud. - I think, therefore I yam -Graffito

Cogito ergo dim sum. (Therefore I think these are pork buns.) -Robert Byrne

Gods have become like us, ergo, we have become like gods. And to you, my unknown planetary readers, we will come to you, to make your life as divinely rational and exact as ours. -Yavgeny Zamyatin -We

The muse is fickle; ergo, when she knocks, ANSWER! It may take a while, but trust me, she WILL knock. In the meantime, keep your ear pressed firmly to the door. -Quentin R. Bufogle

Cogito ergo sum. (I think, therefore I am.) -RenĂ© Descartes