Dark and difficult times lie ahead. Soon we must all face the choice between what is right and what is easy.

You always admire what you really don't understand.

The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.

A single lie destroys a whole reputation of integrity.

Those who dance are considered insane by those who cannot hear the music.

All great achievements require time.

He that cannot reason is a fool. He that will not is a bigot. He that dare not is a slave.

Those who can not change their minds can not change anything.

It's not a question of learning much.On the contrary.It's a question of UNLEARNING much.

Great acts are made up of small deeds.

Judge not unless you judge yourself.

Tomorrow hopes we have learned something from yesterday.

Those who see the invisible can do the impossible.

Adapt what is useful, reject what is useless, and add what is specifically your own.

Judge a man by his questions rather than by his answers.

Real knowledge is to know the extent of one's ignorance.

You cannot truly listen to anyone and do anything else at the same time.

Take care of the pieces well. The whole will take care of itself.

Your reputation is in the hands of others. That's what the reputation is. You can't control that. The only thing you can control is your character.

Never ruin an apology with an excuse.

We never see ourselves as others see us.