...it is a base thing to look to others for your defense instead of depending upon yourself. That defense alone is effectual, sure, and durable which depends upon yourself and your own valor. - Niccolo Machiavelli
To be prepared for war is one of the most effectual means of preserving peace. - George Washington
But Jesus, our Advocate, presents an effectual plea in behalf of all who by repentance and faith have committed the keeping of their souls to Him.He pleads their cause, and by the mighty arguments of Calvary vanquishes their accuser. - Ellen G. White
Reason and free inquiry are the only effectual agents against error. - Thomas Jefferson
Why is it that we entertain the belief that for every purpose odd numbers are the most effectual? - Pliny the Elder
He that loveth a book will never want a faithful friend, a wholesome counsellor, a cheerful companion, an effectual comforter. - Dr. Isaac Barrow
Persuasion is often more effectual than force. - Aesop
The path of precept is long, that of example short and effectual. - Seneca