As you cannot do what you want, Want what you can do

We might say that the earth has the spirit of growth; that its flesh is the soil.

Every now and then go away, have a little relaxation, for when you come back to your work your judgment will be surer.

I have from an early age abjured the use of meat, and the time will come when men such as I will look upon the murder of animals as they now look upon the murder of men.

Test knowledge through experience, be prepared to make mistakes, and be persistent about it.

He who walks straight rarely falls.

Where there is shouting, there is no true knowledge.