Health is the soul that animates all the enjoyments of life, which fade and are tasteless without it.

Our patience will achieve more than our force.

The math is dead simple: it seems that the frequency of planets able to support life is roughly one percent. In other words, a billion or more such worlds exist in our galaxy alone. That's a lot of acreage, and it takes industrial-strength credulity to believe it's all bleakly barren.

Those who occupy their minds with small matters, generally become incapable of greatness.

When you have shot one bird flying you have shot all birds flying. They are all different and they fly in different ways but the sensation is the same and the last one is as good as the first.