Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom..

It is not my prayer and humility that you cause things to go as you wish, but by acquiring a knowledge of natural laws..

I have found, for example, that if I have to write upon sum rather difficult topic, the best plan is to think about it with very great intensity-the ….

The solution of the difficulties which formerly surrounded the mathematical infinite is probably the greatest achievement of which our age has to boa….

Government can easily exist without laws, but law cannot exist without government..

Answering questions is a major part of sex education. Two rules cover the ground. First, always give a truthful answer to a question; secondly, regar….

What will be the good of the conquest of leisure and health, if no one remembers how to use them?.

When it was first proposed to establish laboratories at Cambridge, Todhunter, the mathematician, objected that it was unnecessary for students to see….

Obscenity is whatever happens to shock some elderly and ignorant magistrate..

To acquire immunity to eloquence is of the utmost importance to the citizens of a democracy..

Almost all education has a political motive..

If throughout your life you abstain from murder, theft, fornication, perjury, blasphemy, and disrespect toward your parents, church, and your king, y….

When you come to look into this argument from design, it is a most astonishing thing that people can believe that this world, with all the things tha….

It is undesirable to believe a proposition when there is no ground whatever for supposing it true.

Altogether it will be found that a quiet life is characteristic of great men, and that their pleasures have not been of the sort that would look exci….

Neither acquiescence in skepticism nor acquiescence in dogma is what education should produce..

Good nature is, of all moral qualities, the one that the world needs most, and good nature is the result of ease and security, not of a life of arduo….

In human relations one should penetrate to the core of loneliness in each person and speak to that..

The greatest challenge to any thinker is stating the problem in a way that will allow a solution..

The desire to understand the world and the desire to reform it are the two great engines of progress, without which human society would stand still o….

The fact that a belief has a good moral effect upon a man is no evidence whatsoever in favor of its truth. I'm not contending in a dogmatic way that ….