Someone is said to be the same person from childhood till old age. Although he is called the same person, he never has the same constituents, but is always being renewed in some respects and experiencing loss in others, for instance, his hair, skin, bone, blood and his whole body. This applies not only to the body but also to the mind: attributes, character-traits, beliefs, desires, pleasures, pains, fears - none of these ever remain the same in each of us, but some are emerging while others are being lost. Still more remarkable is the fact that our knowledge changes too, some items emerging, while others are lost, so we are not the same person as regards our knowledge; indeed, each individual item of knowledge goes through the same process.'

• change
• constancy
• knowledge
• old age
• character
• beliefs
• loss
• body