Suffer fools gladly; they may be right.
Books worth reading are worth re-reading.
Originality is only variation.
As soon as an idea is accepted it is time to reject it.
The time to read is any time: no apparatus, no appointment of time and place, is necessary. It is the only art which can be practiced at any hour of the day or night, whenever the time and inclination comes, that is your time for reading; in joy or sorrow, health or illness.
Great books conserve time.