Wishful thinking is not idealism. It is self-indulgence at best and self-exaltation at worst. In either case it is usually at the expense of others. In other words it is the opposite of idealism.
A strong positive self-image is the best possible preparation for success.
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I looked on child rearing not only as a work of love and duty but as a profession that was fully as interesting and challenging as any honorable profession in the world and one that demanded the best that I could bring to it.