No man is wise at all times.
Many heads are better than one.
Virtue never grows old.
Virtue is the only true nobility.
Virtue is a jewel of great price.
He that soweth virtue shall reap fame.
To be virtuous is to do good.
Glory is the shadow of virtue.
There is no virtue that poverty destroyeth not.
The first step to virtue is to abstrain from vice.
No good building without a good foundation.
One good turn deserves another.
He that returns good for evil obtains the victory.
We should never remember the benefits we have offered nor forget the favor received.
If they say you are good, ask yourself if it be true.
He who avoids temptation avoids the sin.
A quiet conscience sleeps in thunder.
Never be weary of well doing.
Of evil grain, no good seed can come.
That which is evil is soon learnt.
No vice goes alone.
An evil lesson is soon learned.
A bad thing never dies.
Evil comes to us by ells and goes away by inches.
The maintaining of one vice costs more than ten virtues.
They that do nothing learn to do ill. (来源：英语聊天室 http://chat.EnglishCN.com)
A wicked man is his own hell.
Those who eat best and drink best often do worst.
He who has done ill once will do it again.
There is no going heaven in a sedan.
An ill life, an ill end.
A wilful fault has no excuse and deserves no pardon.
Love is blind.
Love is without reason.
Love is full of trouble.
Love cannot be compelled.
Love begets love.
Love needs no teaching.
Love at first sight.
Love asks faith, and faith firmness.
Love is the touchstone of virtue.
Love not at the first look.
Hasty love, soon cold.
Love is a sweet torment.
Love rules his kingdom without a sword.
Love will find out the way.
Love is not to be found in the market.
Lovers live by love, as larks live by leeks.
Old love will not be forgotten.
True love kythes(=shows itself) in time of need.
Sound love is not soon forgotten.
The greatest hate springs from the greatest love.