"Take, then, the life of perfect men like Bhishma and think of their deeds and their life and ideals. Your life will be filled by purity, courage, etc. You will become a noble, perfect man. The thought will transform you into its own likeness. Man becomes like what he worships. Man becomes like what he thinks. This is indeed true."
January 1, 1970
https://en.wikiquote.org/wiki/Swami_Sivananda