Oh how unhappy is the prince served by such men who are so easily corrupted.
Science without conscience is the soul's perdition.
Believe me, 'tis a godlike thing to lend; to owe is a heroic virtue.
I have known many who could not when they would, for they had not done it when they could.
I place no hope in my strength, nor in my works: but all my confidence is in God my protector, who never abandons those who have put all their hope and thought in him.
Science sans conscience n' est que le ruine de l'âme. Knowledge without conscience is but the ruine of the soule.