The liberty of the individual must be thus far limited: He must not make himself a nuisance to other people.

A Habit is a shirt made of iron.

A man'sconversation is the mirror of his thoughts.

To effectivelycommunicate, we must realize that we are all different in the way we perceivethe world and use this understanding as a guide to our communication withothers.

A fool can tell the truth, but it requires a man of sense to know how to tell a lie.

Thereis nothing more likely to start disagreement among people or countries thanan agreement.

Talk back to your internal critic. Train yourself to recognize and write downcritical thoughts as they go through your mind. Learn why these thoughts areuntrue and practice talking and writing back to them.

The oldbelieve everything, the middle-aged suspect everything, the young knoweverything.

Angels fly, because they take themselves lightly.

Peoplewho are too concerned with how well they are doing will be less successfuland feel less competent than those who focus on the task itself... Somepsychologists call it a conflict between egoorientation,or between extrinsic and intrinsic motivation…

Ignorancedoesn't kill you, but it does make you sweat a lot.

We own almostall our knowledge not to those who have agreed but to those who havediffered.