The key is to be obtained thus; the first word of the last line must be taken and joined to the first word of the first line; then the second word of the last line to the second word of the first line, and so on to the end. Afterwards, we must begin again by taking the first word of the next line, and the following moral precepts will be the result:
1. Non dicas quodcumque scis, nam qui dicit quodcumque scit sæpe audit quod non expedit.
Do not tell whatever thou knowest, for he who tells whatever he knows, often hears more than is agreeable.
2. Non facias quodcumque potes, nam qui facit, quodcumque potest sæpe facit quod non credit.
Do not do whatever thou canst, for he who does whatever he can, often does more than he imagines.
3. Non credas quodcumque audis, nam qui credit quodcumque audit sæpe quod non fieri potest.
Do not believe whatever thou hearest, for he who believes whatever he hears, will often believe what is impossible.
4. Non expendas quodcumque habes, nam qui expendit quodcumque habet sæpe petit quod non habet.
Do not spend whatever thou hast, for he who spends whatever he has, will often be compelled to ask for what he has not.