1_You have to stop shutting up when you have to say something more valuable than silence.
2_There is a time to be silent, and there is a time to speak.
3_The time of keep quiet must go first; and you won’t speak well enough until have learned before to shut up.
4_Do not indicates less weakness or imprudence shut up when you should speak than the lightness and indiscretion that indicates talking when it is needed to shut up.
5_It is true that, in general, is less risky to talk than shut up.
6_Man is never more master of himself than in silence; when speaks seems to expand, so to speak, out of himself and dissipate through speech, so it belongs less to himself than to others.
7_When something important is needed to be said, we should put special attention: said it to ourselves and after this precaution, said it again to be sure won’t regret, because we do not have the power to retain what has been said.
8_If it is about to keep a secret, won’t never quite enough; Silence is, then, something of which we mustn’t fear the excess.
9_The reserve needed to maintain good behavior in silence in ordinary life it isn’t less a virtue than the skill and care to speak well, and there is no more merit to explain what is known than keep quiet what is ignored. Sometimes, the silence of the wise worth it more than the philosopher reasoning; Silence of the first is a lesson for the impertinent and a correction for the perpetrators.
10_Sometimes, silence brings wisdom to a limited man and good sense to an ignorant.
11_We are naturally inclined to believe that a man who speaks very little is no great genius and another that talks too much is reckless or is crazy. Better not look like a first-class genius, and oftenly remain in silence, than seem a crazy bowing to the impatience of talking too much.
12_Befits to a man of courageous character speak less and do great actions. Befits a man of good judgment little talk and say always reasonable things.
13_Although having inclination to silence, we must be wary of ourselves; and if we have too much passion to say something, this should be reason enough for deciding not to say it.
14_Silence is often necessary, but we must always be honest, you can retain some thought, but should not conceal any. There are ways to shut up without closing the heart, be discreet without being dark and taciturn, hide some truths without covering it all with lies.
A eukaryote (/juːˈkæri.oʊt/yoo-karr-ee-oht) is any organism whose cells contain a nucleus and other organelles enclosed withinmembranes. Eukaryotes belong to the taxon Eukarya or Eukaryota. The defining membrane-bound structure that sets eukaryotic cells apart from prokaryotic cells (Bacteria and Archaea) is the nucleus, which contains the genetic material, enclosed by the nuclear envelope. The presence of a nucleus gives eukaryotes their name, which comes from the Greek ευ (eu, “well”) and κάρυον(karyon, “nut” or “kernel”). Eukaryotic cells also contain other membrane-bound organelles such as mitochondria or the Golgi apparatus. In addition, plants and algae contain chloroplasts. Many unicellular organisms are eukaryotes, such as protozoa. All multicellular organisms are eukaryotes, including animals, plants and fungi.
Cell division in eukaryotes differs from that in prokaryotes. There are two types of division processes. In mitosis, one cell divides to produce two genetically identical cells. In meiosis, which is required in sexual reproduction, one diploid cell (having two instances of each chromosome, one from each parent) undergoes recombination of each pair of parental chromosomes, and then two stages of cell division, resulting in four haploid cells (gametes). Each gamete has just one complement of chromosomes, each a unique mix of the corresponding pair of parental chromosomes.
The domain Eukaryota appears to be monophyletic, and so makes up one of the three domains of life. The two other domains,Bacteria and Archaea, are prokaryotes and have none of the above features. Eukaryotes represent a tiny minority of all living things; even in a human body there are 10 times more microbes than human cells. However, due to their much larger size, their collective worldwide biomass is estimated at about equal to that of prokaryotes. Eukaryotes first developed approximately 1.6–2.1 billion years ago. *