It takes a long time for a country to build a strong base in science, but only a short time to destroy it. Germany was a sad example. It was a world leader in the sciences for more than a century, until its science base was demolished during the Nazi era, and the country ceded its position to the United States.

No human heart is denied empathy. No religion can demolish that by indoctrination. No culture, no nation and nationalism - nothing can touch it because it is empathy.

Hatred will always give birth to more and more hate, and love has the power to demolish the borders between us.

If you don't have the necessary inner balance, leadership can demolish you. Today, if you are a CEO by the time you are 35, you must have ulcers. By 45, you must have diabetes. By 55, you must have had a bypass. People say they have had three bypasses, as if it is a qualification.

Men say they love independence in a woman, but they don't waste a second demolishing it brick by brick.

Whoever conquers a free town and does not demolish it commits a great error and may expect to be ruined himself.

In a way, the futile excuses many people use to cover their superstitions are demolished. They think it is enough to have some sort of religious fervor, however ridiculous, not realizing that true religion must be according to God's will as the perfect measure; that He can never deny Himself and is no mere spirit form to be changed around according to individual preference.

Some years ago I was struck by the large number of falsehoods that I had accepted as true in my childhood, and by the highly doubtful nature of the whole edifice that I had subsequently based on them. I realized that it was necessary, once in the course of my life, to demolish everything completely and start again right from the foundations if I wanted to establish anything at all in the sciences that was stable and likely to last.

Whoever conquers a free town and does not demolish it commits a great error and may expect to be ruined himself.