A good cause is often injured more by ill-timed efforts of its friends than by the arguments of its enemies. Persuasion, perseverance and patience are the best advocates on questions depending on the will of others.
Thomas JeffersonAs you are entered with the class of Nat. philosophy, give to it the hours of lecture, but devote all your other time to Mathematics, avoiding company as the bane of all progress.
Thomas JeffersonNever was so much false arithmetic employed on any subject, as that which has been employed to persuade nations that it is in their interest to go to war.
Thomas JeffersonLeave all the afternoon for exercise and recreation, which are as necessary as reading. I will rather say more necessary because health is worth more than learning.
Thomas Jefferson