It is in human nature to relax, when not compelled by personal advantage or disadvantage.

It is equally a mistake to hold one's self too high, or to rate one's self too cheap.

To tremble before anticipated evils is to bemoan what thou hast never lost.

A stated truth loses its grace, but a repeated error appears insipid and ridiculous.

The thinking person has the strange characteristic to like to create a fantasy in the place of the unsolved problem, a fantasy that stays with the person even when the problem has been solved and truth made its appearance.

Don't judge anyone harshly until you yourself have been through his experiences

Science has been seriously retarded by the study of what is not worth knowing and of what is not knowable.