And here is the slideshow (with cats) of the words you have seen before:
1. Aliud est velle, aliud posse.
(It) is one-thing to-want, another-thing to-be-able.
A-liud est velle, A-liud posse.
You know all the words in this saying already! The word velle is the infinitive of vult, while posse is the infinitive of potest.
2. Sapientia est vera: nolle nimis sapere.
(This) is true wisdom: to-not-want to-know too-much.
sapi-EN-tia est vera: nolle nimis SA-pere.
The word nolle here is the infinitive of non vult, and it takes an infinitive complement here: sapere is the infinitive form of sapio. (Note the soundplay between the word sapientia and sapere, which are both about knowledge and wisdom.)
3. Stultum est vicinum velle ulcisci incendio.
To-want revenge on-a-neighbor with-arson is foolish.
stultum est vi-CI-num velle ul-CIS-ci in-CEN-dio.
The infinitive velle, "to want," takes a complementary infinitive, ulcisci, "to take revenge, exact punishment." This doesn't look like the infinitives that you have seen before because it is a passive form of the infinitive (remember imitari earlier this week? that was also a passive infinitive form).
4. Nocere posse et nolle laus amplissima est.
To-be-able to-injure and to-not-want-to is the greatest praise.
no-CE-re posse et nolle laus am-PLIS-sima est.
The word posse is the infinitive form of potest, "can, is able," and it takes a complementary infinitive: nocere, the infinitive of the verb nocet.
5. Non pudor est non scire; pudor, nil discere velle.
Not to-know is no shame; shame is to-want to-learn nothing.
non pudor est non scire; pudor, nil DIS-cere velle.
The noun pudor, "shame," is new to you, but it shares a root with the Latin word that we use in English too: "pudenda."
The infinitive velle takes a complementary infinitive: discere, the infinitive of the verb discit, which has an object: nil. Put it all together: "to want to learn nothing," velle discere nil.
Here's a recap:
- Aliud est velle, aliud posse.
- Sapientia est vera: nolle nimis sapere.
- Stultum est vicinum velle ulcisci incendio.
- Nocere posse et nolle laus amplissima est.
- Non pudor est non scire; pudor, nil discere velle.
Plus the LOLCats!