Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense.

The longer we live the more we think and the higher the value we put on friendship and tenderness towards parents and friends.

The least pain in our little finger gives us more concern and uneasiness than the destruction of millions of our fellow-beings.

All sciences are now under the obligation to prepare the ground for the future task of the philosopher, which is to solve the problem of value, to determine the true hierarchy of values.

The least of things with a meaning is worth more in life than the greatest of things without it.

Nothing can have value without being an object of utility.

Everything is worth what its purchaser will pay for it.

People should know what you stand for. They should also know what you won't stand for.

Those things that are dearest to us have cost us the most.