It is the most powerful energy in the world. One can profit from a negative attitude just as from a positive attitude. It does not matter as long as one has an attitude of learning. Living is a process, not a goal. Living well depends more on how one learns from one's experiences rather than on what one accomplishes.
Wisdom is a truer measure of one's worth than how many things one owns or how much one does.
To be discovered within the next 30 years.