The ultimate authority must always rest with the individual's own reason and critical analysis.
The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.
Almost every wise saying has an opposite one, no less wise, to balance it.
Thoughts without content are empty, intuitions without concepts are blind.
Attitude, not Aptitude, determines Altitude.
If I speak of myself in different ways, that is because I look at myself in different ways.
The best revenge is to be unlike him who performed the injury.
A mistake is always forgivable, rarely excusable and always unacceptable.
The cure for pain is in the pain.
The only way to get the best of an argument is to avoid it.
Work is the price which is paid for reputation.
No man has any natural authority over his fellow men.
Wonder is the beginning of wisdom.
Attachment is the great fabricator of illusions; reality can be attained only by someone who is detached.
The one you buy will be the only one that doesn't work.
Desire is the very essence of man.
Medicine heals diseases of the body, wisdom frees the soul from passions.
If you only read the books that everyone else is reading, you can only think what everyone else is thinking.
Tis very certain the desire of life prolongs it.
Wisdom begins at the end.
Nothing is softer or more flexible than water, yet nothing can resist it.