Most certainly, some planets are not inhabited, but others are, and among these there must exist life under all conditions and phases of development.
Nikola TeslaFrom childhood I was compelled to concentrate attention upon myself. This caused me much suffering, but to my present view, it was a blessing in disguise for it has taught me to appreciate the inestimable value of introspection in the preservation of life, as well as a means of achievement.
Nikola Tesla