Of All Times in which to Live, You Would Choose Today

I don't think in terms of one year, but I can tell people what I genuinely believe, which is that if we take responsibility in being involved in our own fate if we participate, if we engage, if we speak out, if we work in our communities, if we volunteer, if we see the joy that comes from service to others, then all the problems that we face are solvable despite all the terrible news that you see, despite all the genuine cruelty, pain, and hardship people are experiencing all around the world...

 Preachers and Prophets

Since I have had to pay college tuition for five daughters, I have chosen to play the role of preacher. I preach to all who will listen the gospel of manifest destiny. The destiny which I am preaching is not the expansion of a single nation or of a single species, but the spreading out of life in all its multifarious {134} forms from its confinement on the surface of our small planet to the freedom of a boundless universe. This unimaginably great and diverse universe, in which we occupy one...

 The Magical Number Seven

What about the magical number seven? What about the seven wonders of the world, the seven seas, the seven deadly sins, the seven daughters of Atlas in the Pleiades, the seven ages of man, the seven levels of hell, the seven primary colors, the seven notes of the musical scale, and the seven days of the week? What about the seven-point rating scale, the seven categories for absolute judgment, the seven objects in the span of attention, and the seven digits in the span of immediate memory? For ...

 Geologists VS Physicists on the Age of the Earth

Geologists have not been slow to admit that they were in error in assuming that they had an eternity of past time for the evolution of the earth's history. They have frankly acknowledged the validity of the physical arguments which go to place more or less definite limits to the antiquity of the earth. They were, on the whole, disposed to acquiesce in the allowance of 100 millions of years granted to them by Lord Kelvin, for the transaction of the whole of the long cycles of geological histor...

 The Give and Take of Gender on Evolution

Trivers and Willard realized that the same general principle of sex allocation, which determines the gender of nematodes and fish, applies even to those creatures that cannot change sex but that take care of their young. They predicted that animals would be found to have some systematic control over the sex ratio of their own young. Think of it as a competition to have the most grandchildren. If males are polygamous, a successful son can give you far more grandchildren than a successful daugh...