“The effectiveness of work increases according to geometric progression if there are no interruptions.”

Men and women are not born inconstant: they are made so by their early amorous experiences.

A contemptuous indifference turns into an enemy a woman who, well treated, might have been an angel.

The true evil is not the weakening of the body, but the indifference of the soul.

The difficult part in an argument is not to defend one’s opinion but rather to know it.

There are certain persons for whom pure Truth is a poison.

People are what you make them. A scornful look turns into a complete fool a man of average intelligence.

Without a family, man, alone in the world, trembles with the cold.

No one can be profoundly original who does not avoid eccentricity.

If you value a man’s regard, strive with him. As to liking, you like your newspaper – and despise it.

Conversation would be vastly improved by the constant use of four simple words: I do not know.

We owe to the Middle Ages the two worst inventions of humanity – romantic love and gunpowder.

Modesty and unselfishness – these are the virtues which men praise – and pass by.

If men could regard the events of their own lives with more open minds, they would frequently discover that they did not really desire the things they failed to obtain.

In literature as in love, we are astonished at what is chosen by others.

A happy marriage is a long conversation which always seems too short.

The really great novel tends to be the exact negative of its author’s life.

Don’t tell me about the pain. Show me the baby.

Thomas Gordon, founder of P.E.T. (Parent Effectiveness Training), observed that when children are behaving in a way that interferes with your ability to meet your needs, shouting direct orders to them doesn’t work very well.

The fundamental difference between the mystery story and the ghost story is the fact that a mystery demands a solution for its effectiveness; a ghost story is necessarily unsolvable; the reader must be willing to accept the fact that nothing is proved.

As a child, one looks for compliments. As an adult, one looks for evidence of effectiveness.

Gandhi once declared that it was his wife who unwittingly taught him the effectiveness of nonviolence. Who better than women should know that battles can be won without resort to physical strength? Who better than we should know all the power that resides in noncooperation?

If you so choose, every mistake can lead to greater understanding and effectiveness.

But there is no doubting the effectiveness of a really good willy gag.

There is a lot of rubbish written about toilet humour