In the search for truth - that everything in nature seems to hide - man needs the assistance of all his faculties. All the senses should be awake.

One thing I do know, and that is, that neither hope, nor fear, belief, nor denial, can change the fact. It is as it is, and it will be as it must be.

For thousands of years people have been trying to force other people to think their way. Did they succeed? No. Will they succeed? No. Why? Because brute force is not an argument.

This, in my judgment, is the highest philosophy: First, do not regret having lost yesterday; second, do not fear that you will lose tomorrow; third, enjoy today.

Temptations are as thick as the leaves of the forest, and no one can be out of the reach of temptation unless he is dead. The great thing is to make people intelligent enough and strong enough, not to keep away from temptation, but to resist it.

The only evidence, so far as I know, about another life is, first, that we have no evidence; and secondly, that we are rather sorry that we have not, and wish we had.

In all ages, hypocrites, called priests, have put crowns upon the heads of thieves, called kings.