When you are absolutely sure about something, there is an important statement to tell yourself – “You could be wrong about this.” Many times I have known I was correct but was mistaken. The mountain photo below is an example. I was convinced it was The Three Sisters near Canmore. But, in fact it was not. The actual Three Sisters are a trio of peaks known individually as Big Sister, Middle Sister and Little Sister. The name refers to a story of Ĩ-ktomnĩ, the old man or trickster, who would promise ‘three sisters’ in marriage whenever he was in trouble.