Abraham H. Maslow said this quote

We need not take refuge in supernatural gods to explain our saints and sages and heroes and statesmen, as if to explain our disbelief that mere unaided human beings could be that good or wise.

~ Abraham H. Maslow

I suppose it is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.

~ Abraham H. Maslow

The question of desirable grief and pain or the necessity for it must also be faced. [Are] growth and self-fulfillment possible at all without pain and grief and sorrow and turmoil? If grief and pain are sometimes necessary for growth of the person, then we must learn not to protect people from them automatically as if they were always bad. Not allowing people to go through their pain, and protecting them from it, may turn out to be a kind of overprotection, which in turn implies a certain lack of respect for the integrity and the intrinsic nature and the future development of the individual.

~ Abraham H. Maslow

We fear our highest possibilities. We are generally afraid to become that which we can glimpse in our most perfect moments, under conditions of great courage. We enjoy and even thrill to godlike possibilities we see in ourselves in such peak moments. And yet we simultaneously shiver with weakness, awe, and fear before these very same possibilities.

~ Abraham H. Maslow